/*
* window.c - the PuTTY(tel) main program, which runs a PuTTY terminal
* emulator and backend in a window.
*/

#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <time.h>
#include <limits.h>
#include <assert.h>

#ifdef __WINE__
#define NO_MULTIMON                    /* winelib doesn't have this */
#endif

#ifndef NO_MULTIMON
#define COMPILE_MULTIMON_STUBS
#endif

#define PUTTY_DO_GLOBALS	       /* actually _define_ globals */
#include "putty.h"
#include "terminal.h"
#include "storage.h"
#include "win_res.h"
#include "winsecur.h"

#ifndef NO_MULTIMON
#include <multimon.h>
#endif

#include <imm.h>
#include <commctrl.h>
#include <richedit.h>
#include <mmsystem.h>

/* From MSDN: In the WM_SYSCOMMAND message, the four low-order bits of
* wParam are used by Windows, and should be masked off, so we shouldn't
* attempt to store information in them. Hence all these identifiers have
* the low 4 bits clear. Also, identifiers should < 0xF000. */

#define IDM_SHOWLOG   0x0010
#define IDM_NEWSESS   0x0020
#define IDM_DUPSESS   0x0030
#define IDM_RESTART   0x0040
#define IDM_RECONF    0x0050
#define IDM_CLRSB     0x0060
#define IDM_RESET     0x0070
#define IDM_HELP      0x0140
#define IDM_ABOUT     0x0150
#define IDM_SAVEDSESS 0x0160
#define IDM_COPYALL   0x0170
#define IDM_FULLSCREEN	0x0180
#define IDM_PASTE     0x0190
#define IDM_SPECIALSEP 0x0200
#define IDM_WINSCP   0x0250
#define IDM_FSPSCP   0x0350

#define IDM_SPECIAL_MIN 0x0400
#define IDM_SPECIAL_MAX 0x0800

#define IDM_MENU_MIN  0x0801
#define IDM_MENU_MAX  0x0999

#define IDM_SAVED_MIN 0x1000
#define IDM_SAVED_MAX 0x5000
#define MENU_SAVED_STEP 16
/* Maximum number of sessions on saved-session submenu */
#define MENU_SAVED_MAX ((IDM_SAVED_MAX-IDM_SAVED_MIN) / MENU_SAVED_STEP)

#define WM_IGNORE_CLIP (WM_APP + 2)
#define WM_FULLSCR_ON_MAX (WM_APP + 3)
#define WM_AGENT_CALLBACK (WM_APP + 4)
#define WM_GOT_CLIPDATA (WM_APP + 6)

/* Needed for Chinese support and apparently not always defined. */
#ifndef VK_PROCESSKEY
#define VK_PROCESSKEY 0xE5
#endif

/* Mouse wheel support. */
#ifndef WM_MOUSEWHEEL
#define WM_MOUSEWHEEL 0x020A	       /* not defined in earlier SDKs */
#endif
#ifndef WHEEL_DELTA
#define WHEEL_DELTA 120
#endif

/* VK_PACKET, used to send Unicode characters in WM_KEYDOWNs */
#ifndef VK_PACKET
#define VK_PACKET 0xE7
#endif

static Mouse_Button translate_button(Mouse_Button button);
static LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
static int TranslateKey(UINT message, WPARAM wParam, LPARAM lParam,
	unsigned char *output);
static void conftopalette(void);
static void systopalette(void);
static void init_palette(void);
static void init_fonts(int, int);
static void another_font(int);
static void deinit_fonts(void);
static void set_input_locale(HKL);
static void update_savedsess_menu(void);
static void init_winfuncs(void);

static int is_full_screen(void);
static void make_full_screen(void);
static void clear_full_screen(void);
static void flip_full_screen(void);
static int process_clipdata(HGLOBAL clipdata, int unicode);

/* Window layout information */
static void reset_window(int);
static int extra_width, extra_height;
static int font_width, font_height, font_dualwidth, font_varpitch;
static int offset_width, offset_height;
static int was_zoomed = 0;
static int prev_rows, prev_cols;

static void flash_window(int mode);
static void sys_cursor_update(void);
static int get_fullscreen_rect(RECT * ss);

static int caret_x = -1, caret_y = -1;

static int kbd_codepage;

static void *ldisc;
static Backend *back;
static void *backhandle;

static struct unicode_data ucsdata;
static int session_closed;
static int reconfiguring = FALSE;

static const struct telnet_special *specials = NULL;
static HMENU specials_menu = NULL;
static int n_specials = 0;

static wchar_t *clipboard_contents;
static size_t clipboard_length;

#define TIMING_TIMER_ID 1234
static long timing_next_time;

static struct {
	HMENU menu;
} popup_menus[2];
enum { SYSMENU, CTXMENU };
static HMENU savedsess_menu;

struct wm_netevent_params {
	/* Used to pass data to wm_netevent_callback */
	WPARAM wParam;
	LPARAM lParam;
};

Conf *conf;			       /* exported to windlg.c */

static void conf_cache_data(void);
int cursor_type;
int vtmode;

static struct sesslist sesslist;       /* for saved-session menu */

struct agent_callback {
	void (*callback)(void *, void *, int);
	void *callback_ctx;
	void *data;
	int len;
};

#define FONT_NORMAL 0
#define FONT_BOLD 1
#define FONT_UNDERLINE 2
#define FONT_BOLDUND 3
#define FONT_WIDE	0x04
#define FONT_HIGH	0x08
#define FONT_NARROW	0x10

#define FONT_OEM 	0x20
#define FONT_OEMBOLD 	0x21
#define FONT_OEMUND 	0x22
#define FONT_OEMBOLDUND 0x23

#define FONT_MAXNO 	0x40
#define FONT_SHIFT	5
static HFONT fonts[FONT_MAXNO];
static LOGFONT lfont;
static int fontflag[FONT_MAXNO];
static enum {
	BOLD_NONE, BOLD_SHADOW, BOLD_FONT
} bold_font_mode;
static int bold_colours;
static enum {
	UND_LINE, UND_FONT
} und_mode;
static int descent;

#define NCFGCOLOURS 22
#define NEXTCOLOURS 240
#define NALLCOLOURS (NCFGCOLOURS + NEXTCOLOURS)
static COLORREF colours[NALLCOLOURS];
static HPALETTE pal;
static LPLOGPALETTE logpal;
static RGBTRIPLE defpal[NALLCOLOURS];

static HBITMAP caretbm;

static int dbltime, lasttime, lastact;
static Mouse_Button lastbtn;

/* this allows xterm-style mouse handling. */
static int send_raw_mouse = 0;
static int wheel_accumulator = 0;

static int busy_status = BUSY_NOT;

static char *window_name, *icon_name;

static int compose_state = 0;

static UINT wm_mousewheel = WM_MOUSEWHEEL;

#define IS_HIGH_VARSEL(wch1, wch2) \
	((wch1) == 0xDB40 && ((wch2) >= 0xDD00 && (wch2) <= 0xDDEF))
#define IS_LOW_VARSEL(wch) \
	(((wch) >= 0x180B && (wch) <= 0x180D) || /* MONGOLIAN FREE VARIATION SELECTOR */ \
	((wch) >= 0xFE00 && (wch) <= 0xFE0F)) /* VARIATION SELECTOR 1-16 */

const int share_can_be_downstream = TRUE;
const int share_can_be_upstream = TRUE;

/* Dummy routine, only required in plink. */
void frontend_echoedit_update(void *frontend, int echo, int edit)
{
}

int frontend_is_utf8(void *frontend)
{
	return ucsdata.line_codepage == CP_UTF8;
}

char *get_ttymode(void *frontend, const char *mode)
{
	return term_get_ttymode(term, mode);
}

static void start_backend(void)
{
	const char *error;
	char msg[1024], *title;
	char *realhost;
	int i;

	/*
	* Select protocol. This is farmed out into a table in a
	* separate file to enable an ssh-free variant.
	*/
	back = backend_from_proto(conf_get_int(conf, CONF_protocol));
	if (back == NULL) {
		char *str = dupprintf("%s Internal Error", appname);
		MessageBox(NULL, "Unsupported protocol number found",
			str, MB_OK | MB_ICONEXCLAMATION);
		sfree(str);
		cleanup_exit(1);
	}

	error = back->init(NULL, &backhandle, conf,
		conf_get_str(conf, CONF_host),
		conf_get_int(conf, CONF_port),
		&realhost,
		conf_get_int(conf, CONF_tcp_nodelay),
		conf_get_int(conf, CONF_tcp_keepalives));
	back->provide_logctx(backhandle, logctx);
	if (error) {
		char *str = dupprintf("%s Error", appname);
		sprintf(msg, "Unable to open connection to\n"
			"%.800s\n" "%s", conf_dest(conf), error);
		MessageBox(NULL, msg, str, MB_ICONERROR | MB_OK);
		sfree(str);
		exit(0);
	}
	window_name = icon_name = NULL;
	title = conf_get_str(conf, CONF_wintitle);
	if (!*title) {
		sprintf(msg, "%s - %s", realhost, appname);
		title = msg;
	}
	sfree(realhost);
	set_title(NULL, title);
	set_icon(NULL, title);

	/*
	* Connect the terminal to the backend for resize purposes.
	*/
	term_provide_resize_fn(term, back->size, backhandle);

	/*
	* Set up a line discipline.
	*/
	ldisc = ldisc_create(conf, term, back, backhandle, NULL);

	/*
	* Destroy the Restart Session menu item. (This will return
	* failure if it's already absent, as it will be the very first
	* time we call this function. We ignore that, because as long
	* as the menu item ends up not being there, we don't care
	* whether it was us who removed it or not!)
	*/
	for (i = 0; i < lenof(popup_menus); i++) {
		DeleteMenu(popup_menus[i].menu, IDM_RESTART, MF_BYCOMMAND);
	}

	session_closed = FALSE;
}

static void close_session(void *ignored_context)
{
	char morestuff[100];
	int i;

	session_closed = TRUE;
	sprintf(morestuff, "%.70s (inactive)", appname);
	set_icon(NULL, morestuff);
	set_title(NULL, morestuff);

	if (ldisc) {
		ldisc_free(ldisc);
		ldisc = NULL;
	}
	if (back) {
		back->free(backhandle);
		backhandle = NULL;
		back = NULL;
		term_provide_resize_fn(term, NULL, NULL);
		update_specials_menu(NULL);
	}

	/*
	* Show the Restart Session menu item. Do a precautionary
	* delete first to ensure we never end up with more than one.
	*/
	for (i = 0; i < lenof(popup_menus); i++) {
		DeleteMenu(popup_menus[i].menu, IDM_RESTART, MF_BYCOMMAND);
		InsertMenu(popup_menus[i].menu, IDM_DUPSESS, MF_BYCOMMAND | MF_ENABLED,
			IDM_RESTART, "&Restart Session");
	}
}

char m_script[1000][1000];
int  m_script_len = 0;
int  m_menuid = 0;
//read config
int readScript()
{
	FILE *fp;  
	char line[1000];
	int len;
	
	fp = fopen("config.ini","r");  
	if (fp == NULL)  
	{  
		return 1;  
	}
	m_script_len = 0;
	while(!feof(fp))  
	{  
		fgets(line,1000,fp);
		len = strlen(line);
		if (line[len - 1] == 10)
		{
			line[len - 1] = 0;
		}
        if (strncmp(line, "[DEFAULT-COLOR=", 15) == 0)
        {
            continue;
        }
		strcpy(m_script[m_script_len], line);
		m_script_len++;
		if (m_script_len >= 1000)
		{
			break;
		}
		line[0] = 0;
	}
	fclose(fp);  
	return 0;  
}

//IDM_MENU_MIN
int m_is_watch = 0;
char m_watch_data[10240];

void waitstr(char * temp)
{
	int count = 50;

	while (count > 0)
	{
		char *p = strstr(m_watch_data, temp);
		if (p != NULL)
		{
			break;
		}
		count--;
		Sleep(200);
	}
}

DWORD WINAPI run_script_thread(LPVOID _pts)
{
	HWND hwnd = (HWND)_pts;
	unsigned int menuid = m_menuid;
	int i;
	int k;
	int flag;
	unsigned int menu_count = 0;
	char temp[1000];
	
	readScript();
	if (m_script_len > 0)
	{
		m_is_watch = 1;
		memset(m_watch_data,  0, 10240);
		for (k = 0; k < m_script_len; k++) 
		{
			int len = strlen(m_script[k]);
			flag = 0;

			if (len > 2) 
			{
				if (m_script[k][0] == '[')
				{
					if ((m_script[k][len - 1] == ']') ||
						((m_script[k][len - 1] == 10) && (m_script[k][len - 2] == ']')))
					{
						menu_count++;
						continue;
					}
				}
			}
			if (menu_count > menuid)
			{
				break;
			}
			if (menu_count == menuid)
			{
				if (strncmp(m_script[k], "sleep ", 6) == 0)
				{
					strcpy(temp, m_script[k] + 6);
					Sleep(atoi(temp));
				}
				else if (strncmp(m_script[k], "wait ", 5) == 0)
				{
					strcpy(temp, m_script[k] + 5);
					waitstr(temp);
				}
				else if (strncmp(m_script[k], "expect ", 7) == 0)
				{
					strcpy(temp, m_script[k] + 7);
					waitstr(temp);
				}
				else
				{
					for (i = 0; i <len; i++)
					{
						if (m_script[k][i] == 10)
						{
							continue;
						}
                        if (m_script[k][0] == 32)
						{
							continue;
						}
						SendMessage(hwnd, WM_CHAR, m_script[k][i], 0);
						Sleep(30);
					}
					Sleep(100);
					SendMessage(hwnd, 0, 13, 0); 
					SendMessage(hwnd, WM_KEYUP, 13, 0);
					Sleep(500);
				}
			}
		}
		m_is_watch = 0;
	}

	return 0;
}
//run script by thread
void autoRunScript(HWND hwnd, unsigned int menuid)
{
	DWORD in_threadid;
	m_menuid = menuid;
	CreateThread(NULL, 0, run_script_thread, hwnd, 0, &in_threadid);
}

void showwinscp(HWND hwnd)
{
	ShellExecute(hwnd, "open",
	"WinSCP.exe",
	0, 0, 10);
}


int WINAPI WinMain(HINSTANCE inst, HINSTANCE prev, LPSTR cmdline, int show)
{
	MSG msg;
	HRESULT hr;
	int guess_width, guess_height;

	dll_hijacking_protection();
	readScript();

	hinst = inst;
	hwnd = NULL;
	flags = FLAG_VERBOSE | FLAG_INTERACTIVE;

	sk_init();

	init_common_controls();

	/* Set Explicit App User Model Id so that jump lists don't cause
	PuTTY to hang on to removable media. */

	set_explicit_app_user_model_id();

	/* Ensure a Maximize setting in Explorer doesn't maximise the
	* config box. */
	defuse_showwindow();

	if (!init_winver())
	{
		char *str = dupprintf("%s Fatal Error", appname);
		MessageBox(NULL, "Windows refuses to report a version",
			str, MB_OK | MB_ICONEXCLAMATION);
		sfree(str);
		return 1;
	}

	/*
	* If we're running a version of Windows that doesn't support
	* WM_MOUSEWHEEL, find out what message number we should be
	* using instead.
	*/
	if (osVersion.dwMajorVersion < 4 ||
		(osVersion.dwMajorVersion == 4 && 
		osVersion.dwPlatformId != VER_PLATFORM_WIN32_NT))
		wm_mousewheel = RegisterWindowMessage("MSWHEEL_ROLLMSG");

	init_help();

	init_winfuncs();

	conf = conf_new();

	/*
	* Initialize COM.
	*/
	hr = CoInitialize(NULL);
	if (hr != S_OK && hr != S_FALSE) {
		char *str = dupprintf("%s Fatal Error", appname);
		MessageBox(NULL, "Failed to initialize COM subsystem",
			str, MB_OK | MB_ICONEXCLAMATION);
		sfree(str);
		return 1;
	}

	/*
	* Process the command line.
	*/
	{
		char *p;
		int got_host = 0;
		/* By default, we bring up the config dialog, rather than launching
		* a session. This gets set to TRUE if something happens to change
		* that (e.g., a hostname is specified on the command-line). */
		int allow_launch = FALSE;

		default_protocol = be_default_protocol;
		/* Find the appropriate default port. */
		{
			Backend *b = backend_from_proto(default_protocol);
			default_port = 0; /* illegal */
			if (b)
				default_port = b->default_port;
		}
		conf_set_int(conf, CONF_logtype, LGTYP_NONE);

		do_defaults(NULL, conf);

		p = cmdline;

		/*
		* Process a couple of command-line options which are more
		* easily dealt with before the line is broken up into words.
		* These are the old-fashioned but convenient @sessionname and
		* the internal-use-only &sharedmemoryhandle, plus the &R
		* prefix for -restrict-acl, all of which are used by PuTTYs
		* auto-launching each other via System-menu options.
		*/
		while (*p && isspace(*p))
			p++;
		if (*p == '&' && p[1] == 'R' &&
			(!p[2] || p[2] == '@' || p[2] == '&')) {
				/* &R restrict-acl prefix */
				restrict_process_acl();
				restricted_acl = TRUE;
				p += 2;
		}

		if (*p == '@') {
			/*
			* An initial @ means that the whole of the rest of the
			* command line should be treated as the name of a saved
			* session, with _no quoting or escaping_. This makes it a
			* very convenient means of automated saved-session
			* launching, via IDM_SAVEDSESS or Windows 7 jump lists.
			*/
			int i = strlen(p);
			while (i > 1 && isspace(p[i - 1]))
				i--;
			p[i] = '\0';
			do_defaults(p + 1, conf);
			if (!conf_launchable(conf) && !do_config()) {
				cleanup_exit(0);
			}
			allow_launch = TRUE;    /* allow it to be launched directly */
		} else if (*p == '&') {
			/*
			* An initial & means we've been given a command line
			* containing the hex value of a HANDLE for a file
			* mapping object, which we must then interpret as a
			* serialised Conf.
			*/
			HANDLE filemap;
			void *cp;
			unsigned cpsize;
			if (sscanf(p + 1, "%p:%u", &filemap, &cpsize) == 2 &&
				(cp = MapViewOfFile(filemap, FILE_MAP_READ,
				0, 0, cpsize)) != NULL) {
					conf_deserialise(conf, cp, cpsize);
					UnmapViewOfFile(cp);
					CloseHandle(filemap);
			} else if (!do_config()) {
				cleanup_exit(0);
			}
			allow_launch = TRUE;
		} else if (!*p) {
			/* Do-nothing case for an empty command line - or rather,
			* for a command line that's empty _after_ we strip off
			* the &R prefix. */
		} else {
			/*
			* Otherwise, break up the command line and deal with
			* it sensibly.
			*/
			int argc, i;
			char **argv;

			split_into_argv(cmdline, &argc, &argv, NULL);

			for (i = 0; i < argc; i++) {
				char *p = argv[i];
				int ret;

				ret = cmdline_process_param(p, i+1<argc?argv[i+1]:NULL,
					1, conf);
				if (ret == -2) {
					cmdline_error("option \"%s\" requires an argument", p);
				} else if (ret == 2) {
					i++;	       /* skip next argument */
				} else if (ret == 1) {
					continue;	       /* nothing further needs doing */
				} else if (!strcmp(p, "-cleanup")) {
					/*
					* `putty -cleanup'. Remove all registry
					* entries associated with PuTTY, and also find
					* and delete the random seed file.
					*/
					char *s1, *s2;
					s1 = dupprintf("This procedure will remove ALL Registry entries\n"
						"associated with %s, and will also remove\n"
						"the random seed file. (This only affects the\n"
						"currently logged-in user.)\n"
						"\n"
						"THIS PROCESS WILL DESTROY YOUR SAVED SESSIONS.\n"
						"Are you really sure you want to continue?",
						appname);
					s2 = dupprintf("%s Warning", appname);
					if (message_box(s1, s2,
						MB_YESNO | MB_ICONWARNING | MB_DEFBUTTON2,
						HELPCTXID(option_cleanup)) == IDYES) {
							cleanup_all();
					}
					sfree(s1);
					sfree(s2);
					exit(0);
				} else if (!strcmp(p, "-pgpfp")) {
					pgp_fingerprints();
					exit(1);
				} else if (*p != '-') {
					char *q = p;
					if (got_host) {
						/*
						* If we already have a host name, treat
						* this argument as a port number. NB we
						* have to treat this as a saved -P
						* argument, so that it will be deferred
						* until it's a good moment to run it.
						*/
						int ret = cmdline_process_param("-P", p, 1, conf);
						assert(ret == 2);
					} else if (!strncmp(q, "telnet:", 7)) {
						/*
						* If the hostname starts with "telnet:",
						* set the protocol to Telnet and process
						* the string as a Telnet URL.
						*/
						char c;

						q += 7;
						if (q[0] == '/' && q[1] == '/')
							q += 2;
						conf_set_int(conf, CONF_protocol, PROT_TELNET);
						p = q;
						p += host_strcspn(p, ":/");
						c = *p;
						if (*p)
							*p++ = '\0';
						if (c == ':')
							conf_set_int(conf, CONF_port, atoi(p));
						else
							conf_set_int(conf, CONF_port, -1);
						conf_set_str(conf, CONF_host, q);
						got_host = 1;
					} else {
						/*
						* Otherwise, treat this argument as a host
						* name.
						*/
						while (*p && !isspace(*p))
							p++;
						if (*p)
							*p++ = '\0';
						conf_set_str(conf, CONF_host, q);
						got_host = 1;
					}
				} else {
					cmdline_error("unknown option \"%s\"", p);
				}
			}
		}

		cmdline_run_saved(conf);

		if (loaded_session || got_host)
			allow_launch = TRUE;

		if ((!allow_launch || !conf_launchable(conf)) && !do_config()) {
			cleanup_exit(0);
		}

		/*
		* Muck about with the hostname in various ways.
		*/
		{
			char *hostbuf = dupstr(conf_get_str(conf, CONF_host));
			char *host = hostbuf;
			char *p, *q;

			/*
			* Trim leading whitespace.
			*/
			host += strspn(host, " \t");

			/*
			* See if host is of the form user@host, and separate
			* out the username if so.
			*/
			if (host[0] != '\0') {
				char *atsign = strrchr(host, '@');
				if (atsign) {
					*atsign = '\0';
					conf_set_str(conf, CONF_username, host);
					host = atsign + 1;
				}
			}

			/*
			* Trim a colon suffix off the hostname if it's there. In
			* order to protect unbracketed IPv6 address literals
			* against this treatment, we do not do this if there's
			* _more_ than one colon.
			*/
			{
				char *c = host_strchr(host, ':');

				if (c) {
					char *d = host_strchr(c+1, ':');
					if (!d)
						*c = '\0';
				}
			}

			/*
			* Remove any remaining whitespace.
			*/
			p = hostbuf;
			q = host;
			while (*q) {
				if (*q != ' ' && *q != '\t')
					*p++ = *q;
				q++;
			}
			*p = '\0';

			conf_set_str(conf, CONF_host, hostbuf);
			sfree(hostbuf);
		}
	}

	if (!prev) {
		WNDCLASSW wndclass;

		wndclass.style = 0;
		wndclass.lpfnWndProc = WndProc;
		wndclass.cbClsExtra = 0;
		wndclass.cbWndExtra = 0;
		wndclass.hInstance = inst;
		wndclass.hIcon = LoadIcon(inst, MAKEINTRESOURCE(IDI_MAINICON));
		wndclass.hCursor = LoadCursor(NULL, IDC_IBEAM);
		wndclass.hbrBackground = NULL;
		wndclass.lpszMenuName = NULL;
		wndclass.lpszClassName = dup_mb_to_wc(DEFAULT_CODEPAGE, 0, appname);

		RegisterClassW(&wndclass);
	}

	memset(&ucsdata, 0, sizeof(ucsdata));

	conf_cache_data();

	conftopalette();

	/*
	* Guess some defaults for the window size. This all gets
	* updated later, so we don't really care too much. However, we
	* do want the font width/height guesses to correspond to a
	* large font rather than a small one...
	*/

	font_width = 10;
	font_height = 20;
	extra_width = 25;
	extra_height = 28;
	guess_width = extra_width + font_width * conf_get_int(conf, CONF_width);
	guess_height = extra_height + font_height*conf_get_int(conf, CONF_height);
	{
		RECT r;
		get_fullscreen_rect(&r);
		if (guess_width > r.right - r.left)
			guess_width = r.right - r.left;
		if (guess_height > r.bottom - r.top)
			guess_height = r.bottom - r.top;
	}

	{
		int winmode = WS_OVERLAPPEDWINDOW | WS_VSCROLL;
		int exwinmode = 0;
		wchar_t *uappname = dup_mb_to_wc(DEFAULT_CODEPAGE, 0, appname);
		if (!conf_get_int(conf, CONF_scrollbar))
			winmode &= ~(WS_VSCROLL);
		if (conf_get_int(conf, CONF_resize_action) == RESIZE_DISABLED)
			winmode &= ~(WS_THICKFRAME | WS_MAXIMIZEBOX);
		if (conf_get_int(conf, CONF_alwaysontop))
			exwinmode |= WS_EX_TOPMOST;
		if (conf_get_int(conf, CONF_sunken_edge))
			exwinmode |= WS_EX_CLIENTEDGE;
		hwnd = CreateWindowExW(exwinmode, uappname, uappname,
			winmode, CW_USEDEFAULT, CW_USEDEFAULT,
			guess_width, guess_height,
			NULL, NULL, inst, NULL);
		sfree(uappname);
	}

	/*
	* Initialise the fonts, simultaneously correcting the guesses
	* for font_{width,height}.
	*/
	init_fonts(0,0);

	/*
	* Initialise the terminal. (We have to do this _after_
	* creating the window, since the terminal is the first thing
	* which will call schedule_timer(), which will in turn call
	* timer_change_notify() which will expect hwnd to exist.)
	*/
	term = term_init(conf, &ucsdata, NULL);
	logctx = log_init(NULL, conf);
	term_provide_logctx(term, logctx);
	term_size(term, conf_get_int(conf, CONF_height),
		conf_get_int(conf, CONF_width),
		conf_get_int(conf, CONF_savelines));

	/*
	* Correct the guesses for extra_{width,height}.
	*/
	{
		RECT cr, wr;
		GetWindowRect(hwnd, &wr);
		GetClientRect(hwnd, &cr);
		offset_width = offset_height = conf_get_int(conf, CONF_window_border);
		extra_width = wr.right - wr.left - cr.right + cr.left + offset_width*2;
		extra_height = wr.bottom - wr.top - cr.bottom + cr.top +offset_height*2;
	}

	/*
	* Resize the window, now we know what size we _really_ want it
	* to be.
	*/
	guess_width = extra_width + font_width * term->cols;
	guess_height = extra_height + font_height * term->rows;
	SetWindowPos(hwnd, NULL, 0, 0, guess_width, guess_height,
		SWP_NOMOVE | SWP_NOREDRAW | SWP_NOZORDER);

	/*
	* Set up a caret bitmap, with no content.
	*/
	{
		char *bits;
		int size = (font_width + 15) / 16 * 2 * font_height;
		bits = snewn(size, char);
		memset(bits, 0, size);
		caretbm = CreateBitmap(font_width, font_height, 1, 1, bits);
		sfree(bits);
	}
	CreateCaret(hwnd, caretbm, font_width, font_height);

	/*
	* Initialise the scroll bar.
	*/
	{
		SCROLLINFO si;

		si.cbSize = sizeof(si);
		si.fMask = SIF_ALL | SIF_DISABLENOSCROLL;
		si.nMin = 0;
		si.nMax = term->rows - 1;
		si.nPage = term->rows;
		si.nPos = 0;
		SetScrollInfo(hwnd, SB_VERT, &si, FALSE);
	}

	/*
	* Prepare the mouse handler.
	*/
	lastact = MA_NOTHING;
	lastbtn = MBT_NOTHING;
	dbltime = GetDoubleClickTime();

	/*
	* Set up the session-control options on the system menu.
	*/
	{
		HMENU m;
		int j;
		char *str;
		int k;
		int flag = 0;
		int menu_count = 0;
		char menu_buff[1000];
		char menu_name[1000];

		popup_menus[SYSMENU].menu = GetSystemMenu(hwnd, FALSE);
		popup_menus[CTXMENU].menu = CreatePopupMenu();
		AppendMenu(popup_menus[CTXMENU].menu, MF_ENABLED, IDM_PASTE, "&Paste");

		savedsess_menu = CreateMenu();
		get_sesslist(&sesslist, TRUE);
		update_savedsess_menu();

		for (j = 0; j < lenof(popup_menus); j++) {
			m = popup_menus[j].menu;

			AppendMenu(m, MF_SEPARATOR, 0, 0);
			AppendMenu(m, MF_ENABLED, IDM_WINSCP, "&Winscp");		
			AppendMenu(m, MF_SEPARATOR, 0, 0);

			if (m_script_len > 0)
			{
				for (k = 0; k < m_script_len; k++) 
				{
					int len = strlen(m_script[k]);
					flag = 0;
					if (len > 2) 
					{
						if (m_script[k][0] == '[')
						{
							if (m_script[k][len - 1] == ']')
							{
								flag = 1;
							}
							if ((m_script[k][len - 1] == 10) && (m_script[k][len - 2] == ']'))
							{
								flag = 2;
							}
							if (flag > 0)
							{
								menu_count++;
								strcpy(menu_name, m_script[k] + 1);
								menu_name[len - flag - 1] = 0;
								if (menu_count < 6)
								{
									sprintf(menu_buff, "F%d - %s", menu_count, menu_name);
									AppendMenu(m, MF_ENABLED, IDM_MENU_MIN + menu_count, menu_buff);
								}
							}
						}
					}					
				}
				AppendMenu(m, MF_SEPARATOR, 0, 0);
			}

			AppendMenu(m, MF_ENABLED, IDM_SHOWLOG, "&Event Log");			
			AppendMenu(m, MF_SEPARATOR, 0, 0);
			AppendMenu(m, MF_ENABLED, IDM_NEWSESS, "Ne&w Session...");
			AppendMenu(m, MF_ENABLED, IDM_DUPSESS, "&Duplicate Session");
			AppendMenu(m, MF_POPUP | MF_ENABLED, (UINT_PTR) savedsess_menu,
				"Sa&ved Sessions");
			AppendMenu(m, MF_ENABLED, IDM_RECONF, "Chan&ge Settings...");
			AppendMenu(m, MF_SEPARATOR, 0, 0);
			AppendMenu(m, MF_ENABLED, IDM_COPYALL, "C&opy All to Clipboard");
			AppendMenu(m, MF_ENABLED, IDM_CLRSB, "C&lear Scrollback");
			AppendMenu(m, MF_ENABLED, IDM_RESET, "Rese&t Terminal");
			AppendMenu(m, MF_SEPARATOR, 0, 0);
			AppendMenu(m, (conf_get_int(conf, CONF_resize_action)
				== RESIZE_DISABLED) ? MF_GRAYED : MF_ENABLED,
				IDM_FULLSCREEN, "&Full Screen");
			AppendMenu(m, MF_SEPARATOR, 0, 0);
			if (has_help())
				AppendMenu(m, MF_ENABLED, IDM_HELP, "&Help");
			str = dupprintf("&About %s", appname);
			AppendMenu(m, MF_ENABLED, IDM_ABOUT, str);
			sfree(str);
		}
	}

	if (restricted_acl) {
		logevent(NULL, "Running with restricted process ACL");
	}

	start_backend();

	/*
	* Set up the initial input locale.
	*/
	set_input_locale(GetKeyboardLayout(0));

	/*
	* Finally show the window!
	*/
	ShowWindow(hwnd, show);
	SetForegroundWindow(hwnd);

	/*
	* Set the palette up.
	*/
	pal = NULL;
	logpal = NULL;
	init_palette();

	term_set_focus(term, GetForegroundWindow() == hwnd);
	UpdateWindow(hwnd);

	while (1) {
		HANDLE *handles;
		int nhandles, n;
		DWORD timeout;

		if (toplevel_callback_pending() ||
			PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE)) {
				/*
				* If we have anything we'd like to do immediately, set
				* the timeout for MsgWaitForMultipleObjects to zero so
				* that we'll only do a quick check of our handles and
				* then get on with whatever that was.
				*
				* One such option is a pending toplevel callback. The
				* other is a non-empty Windows message queue, which you'd
				* think we could leave to MsgWaitForMultipleObjects to
				* check for us along with all the handles, but in fact we
				* can't because once PeekMessage in one iteration of this
				* loop has removed a message from the queue, the whole
				* queue is considered uninteresting by the next
				* invocation of MWFMO. So we check ourselves whether the
				* message queue is non-empty, and if so, set this timeout
				* to zero to ensure MWFMO doesn't block.
				*/
				timeout = 0;
		} else {
			timeout = INFINITE;
			/* The messages seem unreliable; especially if we're being tricky */
			term_set_focus(term, GetForegroundWindow() == hwnd);
		}

		handles = handle_get_events(&nhandles);

		n = MsgWaitForMultipleObjects(nhandles, handles, FALSE,
			timeout, QS_ALLINPUT);

		if ((unsigned)(n - WAIT_OBJECT_0) < (unsigned)nhandles) {
			handle_got_event(handles[n - WAIT_OBJECT_0]);
			sfree(handles);
		} else
			sfree(handles);

		while (PeekMessageW(&msg, NULL, 0, 0, PM_REMOVE)) {
			if (msg.message == WM_QUIT)
				goto finished;	       /* two-level break */

			if (!(IsWindow(logbox) && IsDialogMessage(logbox, &msg)))
				DispatchMessageW(&msg);

			/*
			* WM_NETEVENT messages seem to jump ahead of others in
			* the message queue. I'm not sure why; the docs for
			* PeekMessage mention that messages are prioritised in
			* some way, but I'm unclear on which priorities go where.
			*
			* Anyway, in practice I observe that WM_NETEVENT seems to
			* jump to the head of the queue, which means that if we
			* were to only process one message every time round this
			* loop, we'd get nothing but NETEVENTs if the server
			* flooded us with data, and stop responding to any other
			* kind of window message. So instead, we keep on round
			* this loop until we've consumed at least one message
			* that _isn't_ a NETEVENT, or run out of messages
			* completely (whichever comes first). And we don't go to
			* run_toplevel_callbacks (which is where the netevents
			* are actually processed, causing fresh NETEVENT messages
			* to appear) until we've done this.
			*/
			if (msg.message != WM_NETEVENT)
				break;
		}

		run_toplevel_callbacks();
	}

finished:
	cleanup_exit(msg.wParam);	       /* this doesn't return... */
	return msg.wParam;		       /* ... but optimiser doesn't know */
}

/*
* Clean up and exit.
*/
void cleanup_exit(int code)
{
	/*
	* Clean up.
	*/
	deinit_fonts();
	sfree(logpal);
	if (pal)
		DeleteObject(pal);
	sk_cleanup();

	if (conf_get_int(conf, CONF_protocol) == PROT_SSH) {
		random_save_seed();
#ifdef MSCRYPTOAPI
		crypto_wrapup();
#endif
	}
	shutdown_help();

	/* Clean up COM. */
	CoUninitialize();

	exit(code);
}

/*
* Set up, or shut down, an AsyncSelect. Called from winnet.c.
*/
char *do_select(SOCKET skt, int startup)
{
	int msg, events;
	if (startup) {
		msg = WM_NETEVENT;
		events = (FD_CONNECT | FD_READ | FD_WRITE |
			FD_OOB | FD_CLOSE | FD_ACCEPT);
	} else {
		msg = events = 0;
	}
	if (!hwnd)
		return "do_select(): internal error (hwnd==NULL)";
	if (p_WSAAsyncSelect(skt, hwnd, msg, events) == SOCKET_ERROR) {
		switch (p_WSAGetLastError()) {
		case WSAENETDOWN:
			return "Network is down";
		default:
			return "WSAAsyncSelect(): unknown error";
		}
	}
	return NULL;
}

/*
* Refresh the saved-session submenu from `sesslist'.
*/
static void update_savedsess_menu(void)
{
	int i;
	while (DeleteMenu(savedsess_menu, 0, MF_BYPOSITION)) ;
	/* skip sesslist.sessions[0] == Default Settings */
	for (i = 1;
		i < ((sesslist.nsessions <= MENU_SAVED_MAX+1) ? sesslist.nsessions
		: MENU_SAVED_MAX+1);
	i++)
		AppendMenu(savedsess_menu, MF_ENABLED,
		IDM_SAVED_MIN + (i-1) * MENU_SAVED_STEP,
		sesslist.sessions[i]);
	if (sesslist.nsessions <= 1)
		AppendMenu(savedsess_menu, MF_GRAYED, IDM_SAVED_MIN, "(No sessions)");
}

/*
* Update the Special Commands submenu.
*/
void update_specials_menu(void *frontend)
{
#if 0
	HMENU new_menu;
	int i, j;

	if (back)
		specials = back->get_specials(backhandle);
	else
		specials = NULL;

	if (specials) {
		HMENU saved_menu = NULL;
		int nesting = 1;
		new_menu = CreatePopupMenu();
		for (i = 0; nesting > 0; i++) {
			assert(IDM_SPECIAL_MIN + 0x10 * i < IDM_SPECIAL_MAX);
			switch (specials[i].code) {
			case TS_SEP:
				AppendMenu(new_menu, MF_SEPARATOR, 0, 0);
				break;
			case TS_SUBMENU:
				assert(nesting < 2);
				nesting++;
				saved_menu = new_menu;
				new_menu = CreatePopupMenu();
				AppendMenu(saved_menu, MF_POPUP | MF_ENABLED,
					(UINT_PTR) new_menu, specials[i].name);
				break;
			case TS_EXITMENU:
				nesting--;
				if (nesting) {
					new_menu = saved_menu;
					saved_menu = NULL;
				}
				break;
			default:
				AppendMenu(new_menu, MF_ENABLED, IDM_SPECIAL_MIN + 0x10 * i,
					specials[i].name);
				break;
			}
		}
		n_specials = i - 1;
	} else {
		new_menu = NULL;
		n_specials = 0;
	}

	for (j = 0; j < lenof(popup_menus); j++) {
		if (specials_menu) {
			DeleteMenu(popup_menus[j].menu, (UINT_PTR)specials_menu,
				MF_BYCOMMAND);
			DeleteMenu(popup_menus[j].menu, IDM_SPECIALSEP, MF_BYCOMMAND);
		}
		if (new_menu) {
			InsertMenu(popup_menus[j].menu, IDM_SHOWLOG,
				MF_BYCOMMAND | MF_POPUP | MF_ENABLED,
				(UINT_PTR) new_menu, "S&pecial Command");
			InsertMenu(popup_menus[j].menu, IDM_SHOWLOG,
				MF_BYCOMMAND | MF_SEPARATOR, IDM_SPECIALSEP, 0);
		}
	}
	specials_menu = new_menu;
#endif
}

static void update_mouse_pointer(void)
{
	LPTSTR curstype;
	int force_visible = FALSE;
	static int forced_visible = FALSE;
	switch (busy_status) {
	case BUSY_NOT:
		if (send_raw_mouse)
			curstype = IDC_ARROW;
		else
			curstype = IDC_IBEAM;
		break;
	case BUSY_WAITING:
		curstype = IDC_APPSTARTING; /* this may be an abuse */
		force_visible = TRUE;
		break;
	case BUSY_CPU:
		curstype = IDC_WAIT;
		force_visible = TRUE;
		break;
	default:
		assert(0);
	}
	{
		HCURSOR cursor = LoadCursor(NULL, curstype);
		SetClassLongPtr(hwnd, GCLP_HCURSOR, (LONG_PTR)cursor);
		SetCursor(cursor); /* force redraw of cursor at current posn */
	}
	if (force_visible != forced_visible) {
		/* We want some cursor shapes to be visible always.
		* Along with show_mouseptr(), this manages the ShowCursor()
		* counter such that if we switch back to a non-force_visible
		* cursor, the previous visibility state is restored. */
		ShowCursor(force_visible);
		forced_visible = force_visible;
	}
}

void set_busy_status(void *frontend, int status)
{
	busy_status = status;
	update_mouse_pointer();
}

/*
* set or clear the "raw mouse message" mode
*/
void set_raw_mouse_mode(void *frontend, int activate)
{
	activate = activate && !conf_get_int(conf, CONF_no_mouse_rep);
	send_raw_mouse = activate;
	update_mouse_pointer();
}

/*
* Print a message box and close the connection.
*/
void connection_fatal(void *frontend, const char *fmt, ...)
{
	va_list ap;
	char *stuff, morestuff[100];

	va_start(ap, fmt);
	stuff = dupvprintf(fmt, ap);
	va_end(ap);
	sprintf(morestuff, "%.70s Fatal Error", appname);
	MessageBox(hwnd, stuff, morestuff, MB_ICONERROR | MB_OK);
	sfree(stuff);

	if (conf_get_int(conf, CONF_close_on_exit) == FORCE_ON)
		PostQuitMessage(1);
	else {
		queue_toplevel_callback(close_session, NULL);
	}
}

/*
* Report an error at the command-line parsing stage.
*/
void cmdline_error(const char *fmt, ...)
{
	va_list ap;
	char *stuff, morestuff[100];

	va_start(ap, fmt);
	stuff = dupvprintf(fmt, ap);
	va_end(ap);
	sprintf(morestuff, "%.70s Command Line Error", appname);
	MessageBox(hwnd, stuff, morestuff, MB_ICONERROR | MB_OK);
	sfree(stuff);
	exit(1);
}

/*
* Actually do the job requested by a WM_NETEVENT
*/
static void wm_netevent_callback(void *vctx)
{
	struct wm_netevent_params *params = (struct wm_netevent_params *)vctx;
	select_result(params->wParam, params->lParam);
	sfree(vctx);
}

/*
* Copy the colour palette from the configuration data into defpal.
* This is non-trivial because the colour indices are different.
*/
static void conftopalette(void)
{
	int i;
	static const int ww[] = {
		256, 257, 258, 259, 260, 261,
		0, 8, 1, 9, 2, 10, 3, 11,
		4, 12, 5, 13, 6, 14, 7, 15
	};

	for (i = 0; i < 22; i++) {
		int w = ww[i];
		defpal[w].rgbtRed = conf_get_int_int(conf, CONF_colours, i*3+0);
		defpal[w].rgbtGreen = conf_get_int_int(conf, CONF_colours, i*3+1);
		defpal[w].rgbtBlue = conf_get_int_int(conf, CONF_colours, i*3+2);
	}
	for (i = 0; i < NEXTCOLOURS; i++) {
		if (i < 216) {
			int r = i / 36, g = (i / 6) % 6, b = i % 6;
			defpal[i+16].rgbtRed = r ? r * 40 + 55 : 0;
			defpal[i+16].rgbtGreen = g ? g * 40 + 55 : 0;
			defpal[i+16].rgbtBlue = b ? b * 40 + 55 : 0;
		} else {
			int shade = i - 216;
			shade = shade * 10 + 8;
			defpal[i+16].rgbtRed = defpal[i+16].rgbtGreen =
				defpal[i+16].rgbtBlue = shade;
		}
	}

	/* Override with system colours if appropriate */
	if (conf_get_int(conf, CONF_system_colour))
		systopalette();
}

/*
* Override bit of defpal with colours from the system.
* (NB that this takes a copy the system colours at the time this is called,
* so subsequent colour scheme changes don't take effect. To fix that we'd
* probably want to be using GetSysColorBrush() and the like.)
*/
static void systopalette(void)
{
	int i;
	static const struct { int nIndex; int norm; int bold; } or[] =
	{
		{ COLOR_WINDOWTEXT,	256, 257 }, /* Default Foreground */
		{ COLOR_WINDOW,		258, 259 }, /* Default Background */
		{ COLOR_HIGHLIGHTTEXT,	260, 260 }, /* Cursor Text */
		{ COLOR_HIGHLIGHT,	261, 261 }, /* Cursor Colour */
	};

	for (i = 0; i < (sizeof(or)/sizeof(or[0])); i++) {
		COLORREF colour = GetSysColor(or[i].nIndex);
		defpal[or[i].norm].rgbtRed =
			defpal[or[i].bold].rgbtRed = GetRValue(colour);
		defpal[or[i].norm].rgbtGreen =
			defpal[or[i].bold].rgbtGreen = GetGValue(colour);
		defpal[or[i].norm].rgbtBlue =
			defpal[or[i].bold].rgbtBlue = GetBValue(colour);
	}
}

/*
* Set up the colour palette.
*/
static void init_palette(void)
{
	int i;
	HDC hdc = GetDC(hwnd);
	if (hdc) {
		if (conf_get_int(conf, CONF_try_palette) &&
			GetDeviceCaps(hdc, RASTERCAPS) & RC_PALETTE) {
				/*
				* This is a genuine case where we must use smalloc
				* because the snew macros can't cope.
				*/
				logpal = smalloc(sizeof(*logpal)
					- sizeof(logpal->palPalEntry)
					+ NALLCOLOURS * sizeof(PALETTEENTRY));
				logpal->palVersion = 0x300;
				logpal->palNumEntries = NALLCOLOURS;
				for (i = 0; i < NALLCOLOURS; i++) {
					logpal->palPalEntry[i].peRed = defpal[i].rgbtRed;
					logpal->palPalEntry[i].peGreen = defpal[i].rgbtGreen;
					logpal->palPalEntry[i].peBlue = defpal[i].rgbtBlue;
					logpal->palPalEntry[i].peFlags = PC_NOCOLLAPSE;
				}
				pal = CreatePalette(logpal);
				if (pal) {
					SelectPalette(hdc, pal, FALSE);
					RealizePalette(hdc);
					SelectPalette(hdc, GetStockObject(DEFAULT_PALETTE), FALSE);
				}
		}
		ReleaseDC(hwnd, hdc);
	}
	if (pal)
		for (i = 0; i < NALLCOLOURS; i++)
			colours[i] = PALETTERGB(defpal[i].rgbtRed,
			defpal[i].rgbtGreen,
			defpal[i].rgbtBlue);
	else
		for (i = 0; i < NALLCOLOURS; i++)
			colours[i] = RGB(defpal[i].rgbtRed,
			defpal[i].rgbtGreen, defpal[i].rgbtBlue);
}

/*
* This is a wrapper to ExtTextOut() to force Windows to display
* the precise glyphs we give it. Otherwise it would do its own
* bidi and Arabic shaping, and we would end up uncertain which
* characters it had put where.
*/
static void exact_textout(HDC hdc, int x, int y, CONST RECT *lprc,
	unsigned short *lpString, UINT cbCount,
	CONST INT *lpDx, int opaque)
{
#ifdef __LCC__
	/*
	* The LCC include files apparently don't supply the
	* GCP_RESULTSW type, but we can make do with GCP_RESULTS
	* proper: the differences aren't important to us (the only
	* variable-width string parameter is one we don't use anyway).
	*/
	GCP_RESULTS gcpr;
#else
	GCP_RESULTSW gcpr;
#endif
	char *buffer = snewn(cbCount*2+2, char);
	char *classbuffer = snewn(cbCount, char);
	memset(&gcpr, 0, sizeof(gcpr));
	memset(buffer, 0, cbCount*2+2);
	memset(classbuffer, GCPCLASS_NEUTRAL, cbCount);

	gcpr.lStructSize = sizeof(gcpr);
	gcpr.lpGlyphs = (void *)buffer;
	gcpr.lpClass = (void *)classbuffer;
	gcpr.nGlyphs = cbCount;
	GetCharacterPlacementW(hdc, lpString, cbCount, 0, &gcpr,
		FLI_MASK | GCP_CLASSIN | GCP_DIACRITIC);

	ExtTextOut(hdc, x, y,
		ETO_GLYPH_INDEX | ETO_CLIPPED | (opaque ? ETO_OPAQUE : 0),
		lprc, buffer, cbCount, lpDx);
}

/*
* The exact_textout() wrapper, unfortunately, destroys the useful
* Windows `font linking' behaviour: automatic handling of Unicode
* code points not supported in this font by falling back to a font
* which does contain them. Therefore, we adopt a multi-layered
* approach: for any potentially-bidi text, we use exact_textout(),
* and for everything else we use a simple ExtTextOut as we did
* before exact_textout() was introduced.
*/
static void general_textout(HDC hdc, int x, int y, CONST RECT *lprc,
	unsigned short *lpString, UINT cbCount,
	CONST INT *lpDx, int opaque)
{
	int i, j, xp, xn;
	int bkmode = 0, got_bkmode = FALSE;

	xp = xn = x;

	for (i = 0; i < (int)cbCount ;) {
		int rtl = is_rtl(lpString[i]);

		xn += lpDx[i];

		for (j = i+1; j < (int)cbCount; j++) {
			if (rtl != is_rtl(lpString[j]))
				break;
			xn += lpDx[j];
		}

		/*
		* Now [i,j) indicates a maximal substring of lpString
		* which should be displayed using the same textout
		* function.
		*/
		if (rtl) {
			exact_textout(hdc, xp, y, lprc, lpString+i, j-i,
				font_varpitch ? NULL : lpDx+i, opaque);
		} else {
			ExtTextOutW(hdc, xp, y, ETO_CLIPPED | (opaque ? ETO_OPAQUE : 0),
				lprc, lpString+i, j-i,
				font_varpitch ? NULL : lpDx+i);
		}

		i = j;
		xp = xn;

		bkmode = GetBkMode(hdc);
		got_bkmode = TRUE;
		SetBkMode(hdc, TRANSPARENT);
		opaque = FALSE;
	}

	if (got_bkmode)
		SetBkMode(hdc, bkmode);
}

static int get_font_width(HDC hdc, const TEXTMETRIC *tm)
{
	int ret;
	/* Note that the TMPF_FIXED_PITCH bit is defined upside down :-( */
	if (!(tm->tmPitchAndFamily & TMPF_FIXED_PITCH)) {
		ret = tm->tmAveCharWidth;
	} else {
#define FIRST '0'
#define LAST '9'
		ABCFLOAT widths[LAST-FIRST + 1];
		int j;

		font_varpitch = TRUE;
		font_dualwidth = TRUE;
		if (GetCharABCWidthsFloat(hdc, FIRST, LAST, widths)) {
			ret = 0;
			for (j = 0; j < lenof(widths); j++) {
				int width = (int)(0.5 + widths[j].abcfA +
					widths[j].abcfB + widths[j].abcfC);
				if (ret < width)
					ret = width;
			}
		} else {
			ret = tm->tmMaxCharWidth;
		}
#undef FIRST
#undef LAST
	}
	return ret;
}

/*
* Initialise all the fonts we will need initially. There may be as many as
* three or as few as one.  The other (potentially) twenty-one fonts are done
* if/when they are needed.
*
* We also:
*
* - check the font width and height, correcting our guesses if
*   necessary.
*
* - verify that the bold font is the same width as the ordinary
*   one, and engage shadow bolding if not.
* 
* - verify that the underlined font is the same width as the
*   ordinary one (manual underlining by means of line drawing can
*   be done in a pinch).
*/
static void init_fonts(int pick_width, int pick_height)
{
	TEXTMETRIC tm;
	CPINFO cpinfo;
	FontSpec *font;
	int fontsize[3];
	int i;
	int quality;
	HDC hdc;
	int fw_dontcare, fw_bold;

	for (i = 0; i < FONT_MAXNO; i++)
		fonts[i] = NULL;

	bold_font_mode = conf_get_int(conf, CONF_bold_style) & 1 ?
BOLD_FONT : BOLD_NONE;
	bold_colours = conf_get_int(conf, CONF_bold_style) & 2 ? TRUE : FALSE;
	und_mode = UND_FONT;

	font = conf_get_fontspec(conf, CONF_font);
	if (font->isbold) {
		fw_dontcare = FW_BOLD;
		fw_bold = FW_HEAVY;
	} else {
		fw_dontcare = FW_DONTCARE;
		fw_bold = FW_BOLD;
	}

	hdc = GetDC(hwnd);

	if (pick_height)
		font_height = pick_height;
	else {
		font_height = font->height;
		if (font_height > 0) {
			font_height =
				-MulDiv(font_height, GetDeviceCaps(hdc, LOGPIXELSY), 72);
		}
	}
	font_width = pick_width;

	quality = conf_get_int(conf, CONF_font_quality);
#define f(i,c,w,u) \
	fonts[i] = CreateFont (font_height, font_width, 0, 0, w, FALSE, u, FALSE, \
	c, OUT_DEFAULT_PRECIS, \
	CLIP_DEFAULT_PRECIS, FONT_QUALITY(quality), \
	FIXED_PITCH | FF_DONTCARE, font->name)

	f(FONT_NORMAL, font->charset, fw_dontcare, FALSE);

	SelectObject(hdc, fonts[FONT_NORMAL]);
	GetTextMetrics(hdc, &tm);

	GetObject(fonts[FONT_NORMAL], sizeof(LOGFONT), &lfont);

	/* Note that the TMPF_FIXED_PITCH bit is defined upside down :-( */
	if (!(tm.tmPitchAndFamily & TMPF_FIXED_PITCH)) {
		font_varpitch = FALSE;
		font_dualwidth = (tm.tmAveCharWidth != tm.tmMaxCharWidth);
	} else {
		font_varpitch = TRUE;
		font_dualwidth = TRUE;
	}
	if (pick_width == 0 || pick_height == 0) {
		font_height = tm.tmHeight;
		font_width = get_font_width(hdc, &tm);
	}

#ifdef RDB_DEBUG_PATCH
	debug(23, "Primary font H=%d, AW=%d, MW=%d",
		tm.tmHeight, tm.tmAveCharWidth, tm.tmMaxCharWidth);
#endif

	{
		CHARSETINFO info;
		DWORD cset = tm.tmCharSet;
		memset(&info, 0xFF, sizeof(info));

		/* !!! Yes the next line is right */
		if (cset == OEM_CHARSET)
			ucsdata.font_codepage = GetOEMCP();
		else
			if (TranslateCharsetInfo ((DWORD *)(ULONG_PTR)cset,
				&info, TCI_SRCCHARSET))
				ucsdata.font_codepage = info.ciACP;
			else
				ucsdata.font_codepage = -1;

		GetCPInfo(ucsdata.font_codepage, &cpinfo);
		ucsdata.dbcs_screenfont = (cpinfo.MaxCharSize > 1);
	}

	f(FONT_UNDERLINE, font->charset, fw_dontcare, TRUE);

	/*
	* Some fonts, e.g. 9-pt Courier, draw their underlines
	* outside their character cell. We successfully prevent
	* screen corruption by clipping the text output, but then
	* we lose the underline completely. Here we try to work
	* out whether this is such a font, and if it is, we set a
	* flag that causes underlines to be drawn by hand.
	*
	* Having tried other more sophisticated approaches (such
	* as examining the TEXTMETRIC structure or requesting the
	* height of a string), I think we'll do this the brute
	* force way: we create a small bitmap, draw an underlined
	* space on it, and test to see whether any pixels are
	* foreground-coloured. (Since we expect the underline to
	* go all the way across the character cell, we only search
	* down a single column of the bitmap, half way across.)
	*/
	{
		HDC und_dc;
		HBITMAP und_bm, und_oldbm;
		int i, gotit;
		COLORREF c;

		und_dc = CreateCompatibleDC(hdc);
		und_bm = CreateCompatibleBitmap(hdc, font_width, font_height);
		und_oldbm = SelectObject(und_dc, und_bm);
		SelectObject(und_dc, fonts[FONT_UNDERLINE]);
		SetTextAlign(und_dc, TA_TOP | TA_LEFT | TA_NOUPDATECP);
		SetTextColor(und_dc, RGB(255, 255, 255));
		SetBkColor(und_dc, RGB(0, 0, 0));
		SetBkMode(und_dc, OPAQUE);
		ExtTextOut(und_dc, 0, 0, ETO_OPAQUE, NULL, " ", 1, NULL);
		gotit = FALSE;
		for (i = 0; i < font_height; i++) {
			c = GetPixel(und_dc, font_width / 2, i);
			if (c != RGB(0, 0, 0))
				gotit = TRUE;
		}
		SelectObject(und_dc, und_oldbm);
		DeleteObject(und_bm);
		DeleteDC(und_dc);
		if (!gotit) {
			und_mode = UND_LINE;
			DeleteObject(fonts[FONT_UNDERLINE]);
			fonts[FONT_UNDERLINE] = 0;
		}
	}

	if (bold_font_mode == BOLD_FONT) {
		f(FONT_BOLD, font->charset, fw_bold, FALSE);
	}
#undef f

	descent = tm.tmAscent + 1;
	if (descent >= font_height)
		descent = font_height - 1;

	for (i = 0; i < 3; i++) {
		if (fonts[i]) {
			if (SelectObject(hdc, fonts[i]) && GetTextMetrics(hdc, &tm))
				fontsize[i] = get_font_width(hdc, &tm) + 256 * tm.tmHeight;
			else
				fontsize[i] = -i;
		} else
			fontsize[i] = -i;
	}

	ReleaseDC(hwnd, hdc);

	if (fontsize[FONT_UNDERLINE] != fontsize[FONT_NORMAL]) {
		und_mode = UND_LINE;
		DeleteObject(fonts[FONT_UNDERLINE]);
		fonts[FONT_UNDERLINE] = 0;
	}

	if (bold_font_mode == BOLD_FONT &&
		fontsize[FONT_BOLD] != fontsize[FONT_NORMAL]) {
			bold_font_mode = BOLD_SHADOW;
			DeleteObject(fonts[FONT_BOLD]);
			fonts[FONT_BOLD] = 0;
	}
	fontflag[0] = fontflag[1] = fontflag[2] = 1;

	init_ucs(conf, &ucsdata);
}

static void another_font(int fontno)
{
	int basefont;
	int fw_dontcare, fw_bold, quality;
	int c, u, w, x;
	char *s;
	FontSpec *font;

	if (fontno < 0 || fontno >= FONT_MAXNO || fontflag[fontno])
		return;

	basefont = (fontno & ~(FONT_BOLDUND));
	if (basefont != fontno && !fontflag[basefont])
		another_font(basefont);

	font = conf_get_fontspec(conf, CONF_font);

	if (font->isbold) {
		fw_dontcare = FW_BOLD;
		fw_bold = FW_HEAVY;
	} else {
		fw_dontcare = FW_DONTCARE;
		fw_bold = FW_BOLD;
	}

	c = font->charset;
	w = fw_dontcare;
	u = FALSE;
	s = font->name;
	x = font_width;

	if (fontno & FONT_WIDE)
		x *= 2;
	if (fontno & FONT_NARROW)
		x = (x+1)/2;
	if (fontno & FONT_OEM)
		c = OEM_CHARSET;
	if (fontno & FONT_BOLD)
		w = fw_bold;
	if (fontno & FONT_UNDERLINE)
		u = TRUE;

	quality = conf_get_int(conf, CONF_font_quality);

	fonts[fontno] =
		CreateFont(font_height * (1 + !!(fontno & FONT_HIGH)), x, 0, 0, w,
		FALSE, u, FALSE, c, OUT_DEFAULT_PRECIS,
		CLIP_DEFAULT_PRECIS, FONT_QUALITY(quality),
		DEFAULT_PITCH | FF_DONTCARE, s);

	fontflag[fontno] = 1;
}

static void deinit_fonts(void)
{
	int i;
	for (i = 0; i < FONT_MAXNO; i++) {
		if (fonts[i])
			DeleteObject(fonts[i]);
		fonts[i] = 0;
		fontflag[i] = 0;
	}
}

void request_resize(void *frontend, int w, int h)
{
	int width, height;

	/* If the window is maximized suppress resizing attempts */
	if (IsZoomed(hwnd)) {
		if (conf_get_int(conf, CONF_resize_action) == RESIZE_TERM)
			return;
	}

	if (conf_get_int(conf, CONF_resize_action) == RESIZE_DISABLED) return;
	if (h == term->rows && w == term->cols) return;

	/* Sanity checks ... */
	{
		static int first_time = 1;
		static RECT ss;

		switch (first_time) {
		case 1:
			/* Get the size of the screen */
			if (get_fullscreen_rect(&ss))
				/* first_time = 0 */ ;
			else {
				first_time = 2;
				break;
			}
		case 0:
			/* Make sure the values are sane */
			width = (ss.right - ss.left - extra_width) / 4;
			height = (ss.bottom - ss.top - extra_height) / 6;

			if (w > width || h > height)
				return;
			if (w < 15)
				w = 15;
			if (h < 1)
				h = 1;
		}
	}

	term_size(term, h, w, conf_get_int(conf, CONF_savelines));

	if (conf_get_int(conf, CONF_resize_action) != RESIZE_FONT &&
		!IsZoomed(hwnd)) {
			width = extra_width + font_width * w;
			height = extra_height + font_height * h;

			SetWindowPos(hwnd, NULL, 0, 0, width, height,
				SWP_NOACTIVATE | SWP_NOCOPYBITS |
				SWP_NOMOVE | SWP_NOZORDER);
	} else
		reset_window(0);

	InvalidateRect(hwnd, NULL, TRUE);
}

static void reset_window(int reinit) {
	/*
	* This function decides how to resize or redraw when the 
	* user changes something. 
	*
	* This function doesn't like to change the terminal size but if the
	* font size is locked that may be it's only soluion.
	*/
	int win_width, win_height, resize_action, window_border;
	RECT cr, wr;

#ifdef RDB_DEBUG_PATCH
	debug((27, "reset_window()"));
#endif

	/* Current window sizes ... */
	GetWindowRect(hwnd, &wr);
	GetClientRect(hwnd, &cr);

	win_width  = cr.right - cr.left;
	win_height = cr.bottom - cr.top;

	resize_action = conf_get_int(conf, CONF_resize_action);
	window_border = conf_get_int(conf, CONF_window_border);

	if (resize_action == RESIZE_DISABLED)
		reinit = 2;

	/* Are we being forced to reload the fonts ? */
	if (reinit>1) {
#ifdef RDB_DEBUG_PATCH
		debug((27, "reset_window() -- Forced deinit"));
#endif
		deinit_fonts();
		init_fonts(0,0);
	}

	/* Oh, looks like we're minimised */
	if (win_width == 0 || win_height == 0)
		return;

	/* Is the window out of position ? */
	if ( !reinit && 
		(offset_width != (win_width-font_width*term->cols)/2 ||
		offset_height != (win_height-font_height*term->rows)/2) ){
			offset_width = (win_width-font_width*term->cols)/2;
			offset_height = (win_height-font_height*term->rows)/2;
			InvalidateRect(hwnd, NULL, TRUE);
#ifdef RDB_DEBUG_PATCH
			debug((27, "reset_window() -> Reposition terminal"));
#endif
	}

	if (IsZoomed(hwnd)) {
		/* We're fullscreen, this means we must not change the size of
		* the window so it's the font size or the terminal itself.
		*/

		extra_width = wr.right - wr.left - cr.right + cr.left;
		extra_height = wr.bottom - wr.top - cr.bottom + cr.top;

		if (resize_action != RESIZE_TERM) {
			if (font_width != win_width/term->cols || 
				font_height != win_height/term->rows) {
					deinit_fonts();
					init_fonts(win_width/term->cols, win_height/term->rows);
					offset_width = (win_width-font_width*term->cols)/2;
					offset_height = (win_height-font_height*term->rows)/2;
					InvalidateRect(hwnd, NULL, TRUE);
#ifdef RDB_DEBUG_PATCH
					debug((25, "reset_window() -> Z font resize to (%d, %d)",
						font_width, font_height));
#endif
			}
		} else {
			if (font_width * term->cols != win_width || 
				font_height * term->rows != win_height) {
					/* Our only choice at this point is to change the 
					* size of the terminal; Oh well.
					*/
					term_size(term, win_height/font_height, win_width/font_width,
						conf_get_int(conf, CONF_savelines));
					offset_width = (win_width-font_width*term->cols)/2;
					offset_height = (win_height-font_height*term->rows)/2;
					InvalidateRect(hwnd, NULL, TRUE);
#ifdef RDB_DEBUG_PATCH
					debug((27, "reset_window() -> Zoomed term_size"));
#endif
			}
		}
		return;
	}

	/* Hmm, a force re-init means we should ignore the current window
	* so we resize to the default font size.
	*/
	if (reinit>0) {
#ifdef RDB_DEBUG_PATCH
		debug((27, "reset_window() -> Forced re-init"));
#endif

		offset_width = offset_height = window_border;
		extra_width = wr.right - wr.left - cr.right + cr.left + offset_width*2;
		extra_height = wr.bottom - wr.top - cr.bottom + cr.top +offset_height*2;

		if (win_width != font_width*term->cols + offset_width*2 ||
			win_height != font_height*term->rows + offset_height*2) {

				/* If this is too large windows will resize it to the maximum
				* allowed window size, we will then be back in here and resize
				* the font or terminal to fit.
				*/
				SetWindowPos(hwnd, NULL, 0, 0, 
					font_width*term->cols + extra_width, 
					font_height*term->rows + extra_height,
					SWP_NOMOVE | SWP_NOZORDER);
		}

		InvalidateRect(hwnd, NULL, TRUE);
		return;
	}

	/* Okay the user doesn't want us to change the font so we try the 
	* window. But that may be too big for the screen which forces us
	* to change the terminal.
	*/
	if ((resize_action == RESIZE_TERM && reinit<=0) ||
		(resize_action == RESIZE_EITHER && reinit<0) ||
		reinit>0) {
			offset_width = offset_height = window_border;
			extra_width = wr.right - wr.left - cr.right + cr.left + offset_width*2;
			extra_height = wr.bottom - wr.top - cr.bottom + cr.top +offset_height*2;

			if (win_width != font_width*term->cols + offset_width*2 ||
				win_height != font_height*term->rows + offset_height*2) {

					static RECT ss;
					int width, height;

					get_fullscreen_rect(&ss);

					width = (ss.right - ss.left - extra_width) / font_width;
					height = (ss.bottom - ss.top - extra_height) / font_height;

					/* Grrr too big */
					if ( term->rows > height || term->cols > width ) {
						if (resize_action == RESIZE_EITHER) {
							/* Make the font the biggest we can */
							if (term->cols > width)
								font_width = (ss.right - ss.left - extra_width)
								/ term->cols;
							if (term->rows > height)
								font_height = (ss.bottom - ss.top - extra_height)
								/ term->rows;

							deinit_fonts();
							init_fonts(font_width, font_height);

							width = (ss.right - ss.left - extra_width) / font_width;
							height = (ss.bottom - ss.top - extra_height) / font_height;
						} else {
							if ( height > term->rows ) height = term->rows;
							if ( width > term->cols )  width = term->cols;
							term_size(term, height, width,
								conf_get_int(conf, CONF_savelines));
#ifdef RDB_DEBUG_PATCH
							debug((27, "reset_window() -> term resize to (%d,%d)",
								height, width));
#endif
						}
					}

					SetWindowPos(hwnd, NULL, 0, 0, 
						font_width*term->cols + extra_width, 
						font_height*term->rows + extra_height,
						SWP_NOMOVE | SWP_NOZORDER);

					InvalidateRect(hwnd, NULL, TRUE);
#ifdef RDB_DEBUG_PATCH
					debug((27, "reset_window() -> window resize to (%d,%d)",
						font_width*term->cols + extra_width,
						font_height*term->rows + extra_height));
#endif
			}
			return;
	}

	/* We're allowed to or must change the font but do we want to ?  */

	if (font_width != (win_width-window_border*2)/term->cols || 
		font_height != (win_height-window_border*2)/term->rows) {

			deinit_fonts();
			init_fonts((win_width-window_border*2)/term->cols, 
				(win_height-window_border*2)/term->rows);
			offset_width = (win_width-font_width*term->cols)/2;
			offset_height = (win_height-font_height*term->rows)/2;

			extra_width = wr.right - wr.left - cr.right + cr.left +offset_width*2;
			extra_height = wr.bottom - wr.top - cr.bottom + cr.top+offset_height*2;

			InvalidateRect(hwnd, NULL, TRUE);
#ifdef RDB_DEBUG_PATCH
			debug((25, "reset_window() -> font resize to (%d,%d)", 
				font_width, font_height));
#endif
	}
}

static void set_input_locale(HKL kl)
{
	char lbuf[20];

	GetLocaleInfo(LOWORD(kl), LOCALE_IDEFAULTANSICODEPAGE,
		lbuf, sizeof(lbuf));

	kbd_codepage = atoi(lbuf);
}

static void click(Mouse_Button b, int x, int y, int shift, int ctrl, int alt)
{
	int thistime = GetMessageTime();

	if (send_raw_mouse &&
		!(shift && conf_get_int(conf, CONF_mouse_override))) {
			lastbtn = MBT_NOTHING;
			term_mouse(term, b, translate_button(b), MA_CLICK,
				x, y, shift, ctrl, alt);
			return;
	}

	if (lastbtn == b && thistime - lasttime < dbltime) {
		lastact = (lastact == MA_CLICK ? MA_2CLK :
			lastact == MA_2CLK ? MA_3CLK :
			lastact == MA_3CLK ? MA_CLICK : MA_NOTHING);
	} else {
		lastbtn = b;
		lastact = MA_CLICK;
	}
	if (lastact != MA_NOTHING)
		term_mouse(term, b, translate_button(b), lastact,
		x, y, shift, ctrl, alt);
	lasttime = thistime;
}

/*
* Translate a raw mouse button designation (LEFT, MIDDLE, RIGHT)
* into a cooked one (SELECT, EXTEND, PASTE).
*/
static Mouse_Button translate_button(Mouse_Button button)
{
	if (button == MBT_LEFT)
		return MBT_SELECT;
	if (button == MBT_MIDDLE)
		return conf_get_int(conf, CONF_mouse_is_xterm) == 1 ?
MBT_PASTE : MBT_EXTEND;
	if (button == MBT_RIGHT)
		return conf_get_int(conf, CONF_mouse_is_xterm) == 1 ?
MBT_EXTEND : MBT_PASTE;
	return 0;			       /* shouldn't happen */
}

static void show_mouseptr(int show)
{
	/* NB that the counter in ShowCursor() is also frobbed by
	* update_mouse_pointer() */
	static int cursor_visible = 1;
	if (!conf_get_int(conf, CONF_hide_mouseptr))
		show = 1;		       /* override if this feature disabled */
	if (cursor_visible && !show)
		ShowCursor(FALSE);
	else if (!cursor_visible && show)
		ShowCursor(TRUE);
	cursor_visible = show;
}

static int is_alt_pressed(void)
{
	BYTE keystate[256];
	int r = GetKeyboardState(keystate);
	if (!r)
		return FALSE;
	if (keystate[VK_MENU] & 0x80)
		return TRUE;
	if (keystate[VK_RMENU] & 0x80)
		return TRUE;
	return FALSE;
}

static int resizing;

void notify_remote_exit(void *fe)
{
	int exitcode, close_on_exit;

	if (!session_closed &&
		(exitcode = back->exitcode(backhandle)) >= 0) {
			close_on_exit = conf_get_int(conf, CONF_close_on_exit);
			/* Abnormal exits will already have set session_closed and taken
			* appropriate action. */
			if (close_on_exit == FORCE_ON ||
				(close_on_exit == AUTO && exitcode != INT_MAX)) {
					PostQuitMessage(0);
			} else {
				queue_toplevel_callback(close_session, NULL);
				session_closed = TRUE;
				/* exitcode == INT_MAX indicates that the connection was closed
				* by a fatal error, so an error box will be coming our way and
				* we should not generate this informational one. */
				if (exitcode != INT_MAX)
					MessageBox(hwnd, "Connection closed by remote host",
					appname, MB_OK | MB_ICONINFORMATION);
			}
	}
}

void timer_change_notify(unsigned long next)
{
	unsigned long now = GETTICKCOUNT();
	long ticks;
	if (now - next < INT_MAX)
		ticks = 0;
	else
		ticks = next - now;
	KillTimer(hwnd, TIMING_TIMER_ID);
	SetTimer(hwnd, TIMING_TIMER_ID, ticks, NULL);
	timing_next_time = next;
}

static void conf_cache_data(void)
{
	/* Cache some items from conf to speed lookups in very hot code */
	cursor_type = conf_get_int(conf, CONF_cursor_type);
	vtmode = conf_get_int(conf, CONF_vtmode);
}

static LRESULT CALLBACK WndProc(HWND hwnd, UINT message,
	WPARAM wParam, LPARAM lParam)
{
	HDC hdc;
	static int ignore_clip = FALSE;
	static int need_backend_resize = FALSE;
	static int fullscr_on_max = FALSE;
	static int processed_resize = FALSE;
	static UINT last_mousemove = 0;
	int resize_action;

	switch (message) {
	case WM_TIMER:
		if ((UINT_PTR)wParam == TIMING_TIMER_ID) {
			unsigned long next;

			KillTimer(hwnd, TIMING_TIMER_ID);
			if (run_timers(timing_next_time, &next)) {
				timer_change_notify(next);
			} else {
			}
		}
		return 0;
	case WM_CREATE:
		break;
	case WM_CLOSE:
		{
			char *str;
			show_mouseptr(1);
			str = dupprintf("%s Exit Confirmation", appname);
			if (session_closed || !conf_get_int(conf, CONF_warn_on_close) ||
				MessageBox(hwnd,
				"Are you sure you want to close this session?",
				str, MB_ICONWARNING | MB_OKCANCEL | MB_DEFBUTTON1)
				== IDOK)
				DestroyWindow(hwnd);
			sfree(str);
		}
		return 0;
	case WM_DESTROY:
		show_mouseptr(1);
		PostQuitMessage(0);
		return 0;
	case WM_INITMENUPOPUP:
		if ((HMENU)wParam == savedsess_menu) {
			/* About to pop up Saved Sessions sub-menu.
			* Refresh the session list. */
			get_sesslist(&sesslist, FALSE); /* free */
			get_sesslist(&sesslist, TRUE);
			update_savedsess_menu();
			return 0;
		}
		break;
	case WM_COMMAND:
	case WM_SYSCOMMAND:
		switch (wParam & ~0xF) {       /* low 4 bits reserved to Windows */
		case IDM_SHOWLOG:
			showeventlog(hwnd);
			break;
		case IDM_WINSCP:
			showwinscp(hwnd);
			break;
		case IDM_NEWSESS:
		case IDM_DUPSESS:
		case IDM_SAVEDSESS:
			{
				char b[2048];
				char *cl;
				const char *argprefix;
				BOOL inherit_handles;
				STARTUPINFO si;
				PROCESS_INFORMATION pi;
				HANDLE filemap = NULL;

				if (restricted_acl)
					argprefix = "&R";
				else
					argprefix = "";

				if (wParam == IDM_DUPSESS) {
					/*
					* Allocate a file-mapping memory chunk for the
					* config structure.
					*/
					SECURITY_ATTRIBUTES sa;
					void *p;
					int size;

					size = conf_serialised_size(conf);

					sa.nLength = sizeof(sa);
					sa.lpSecurityDescriptor = NULL;
					sa.bInheritHandle = TRUE;
					filemap = CreateFileMapping(INVALID_HANDLE_VALUE,
						&sa,
						PAGE_READWRITE,
						0, size, NULL);
					if (filemap && filemap != INVALID_HANDLE_VALUE) {
						p = MapViewOfFile(filemap, FILE_MAP_WRITE, 0, 0, size);
						if (p) {
							conf_serialise(conf, p);
							UnmapViewOfFile(p);
						}
					}
					inherit_handles = TRUE;
					cl = dupprintf("putty %s&%p:%u", argprefix,
						filemap, (unsigned)size);
				} else if (wParam == IDM_SAVEDSESS) {
					unsigned int sessno = ((lParam - IDM_SAVED_MIN)
						/ MENU_SAVED_STEP) + 1;
					if (sessno < (unsigned)sesslist.nsessions) {
						const char *session = sesslist.sessions[sessno];
						cl = dupprintf("putty %s@%s", argprefix, session);
						inherit_handles = FALSE;
					} else
						break;
				} else /* IDM_NEWSESS */ {
					cl = dupprintf("putty%s%s",
						*argprefix ? " " : "",
						argprefix);
					inherit_handles = FALSE;
				}

				GetModuleFileName(NULL, b, sizeof(b) - 1);
				si.cb = sizeof(si);
				si.lpReserved = NULL;
				si.lpDesktop = NULL;
				si.lpTitle = NULL;
				si.dwFlags = 0;
				si.cbReserved2 = 0;
				si.lpReserved2 = NULL;
				CreateProcess(b, cl, NULL, NULL, inherit_handles,
					NORMAL_PRIORITY_CLASS, NULL, NULL, &si, &pi);
				CloseHandle(pi.hProcess);
				CloseHandle(pi.hThread);

				if (filemap)
					CloseHandle(filemap);
				sfree(cl);
			}
			break;
		case IDM_RESTART:
			if (!back) {
				logevent(NULL, "----- Session restarted -----");
				term_pwron(term, FALSE);
				start_backend();
			}

			break;
		case IDM_RECONF:
			{
				Conf *prev_conf;
				int init_lvl = 1;
				int reconfig_result;

				if (reconfiguring)
					break;
				else
					reconfiguring = TRUE;

				/*
				* Copy the current window title into the stored
				* previous configuration, so that doing nothing to
				* the window title field in the config box doesn't
				* reset the title to its startup state.
				*/
				conf_set_str(conf, CONF_wintitle, window_name);

				prev_conf = conf_copy(conf);

				reconfig_result =
					do_reconfig(hwnd, back ? back->cfg_info(backhandle) : 0);
				reconfiguring = FALSE;
				if (!reconfig_result) {
					conf_free(prev_conf);
					break;
				}

				conf_cache_data();

				resize_action = conf_get_int(conf, CONF_resize_action);
				{
					/* Disable full-screen if resizing forbidden */
					int i;
					for (i = 0; i < lenof(popup_menus); i++)
						EnableMenuItem(popup_menus[i].menu, IDM_FULLSCREEN,
						MF_BYCOMMAND | 
						(resize_action == RESIZE_DISABLED)
						? MF_GRAYED : MF_ENABLED);
					/* Gracefully unzoom if necessary */
					if (IsZoomed(hwnd) && (resize_action == RESIZE_DISABLED))
						ShowWindow(hwnd, SW_RESTORE);
				}

				/* Pass new config data to the logging module */
				log_reconfig(logctx, conf);

				sfree(logpal);
				/*
				* Flush the line discipline's edit buffer in the
				* case where local editing has just been disabled.
				*/
				if (ldisc) {
					ldisc_configure(ldisc, conf);
					ldisc_echoedit_update(ldisc);
				}
				if (pal)
					DeleteObject(pal);
				logpal = NULL;
				pal = NULL;
				conftopalette();
				init_palette();

				/* Pass new config data to the terminal */
				term_reconfig(term, conf);

				/* Pass new config data to the back end */
				if (back)
					back->reconfig(backhandle, conf);

				/* Screen size changed ? */
				if (conf_get_int(conf, CONF_height) !=
					conf_get_int(prev_conf, CONF_height) ||
					conf_get_int(conf, CONF_width) !=
					conf_get_int(prev_conf, CONF_width) ||
					conf_get_int(conf, CONF_savelines) !=
					conf_get_int(prev_conf, CONF_savelines) ||
					resize_action == RESIZE_FONT ||
					(resize_action == RESIZE_EITHER && IsZoomed(hwnd)) ||
					resize_action == RESIZE_DISABLED)
					term_size(term, conf_get_int(conf, CONF_height),
					conf_get_int(conf, CONF_width),
					conf_get_int(conf, CONF_savelines));

				/* Enable or disable the scroll bar, etc */
				{
					LONG nflg, flag = GetWindowLongPtr(hwnd, GWL_STYLE);
					LONG nexflag, exflag =
						GetWindowLongPtr(hwnd, GWL_EXSTYLE);

					nexflag = exflag;
					if (conf_get_int(conf, CONF_alwaysontop) !=
						conf_get_int(prev_conf, CONF_alwaysontop)) {
							if (conf_get_int(conf, CONF_alwaysontop)) {
								nexflag |= WS_EX_TOPMOST;
								SetWindowPos(hwnd, HWND_TOPMOST, 0, 0, 0, 0,
									SWP_NOMOVE | SWP_NOSIZE);
							} else {
								nexflag &= ~(WS_EX_TOPMOST);
								SetWindowPos(hwnd, HWND_NOTOPMOST, 0, 0, 0, 0,
									SWP_NOMOVE | SWP_NOSIZE);
							}
					}
					if (conf_get_int(conf, CONF_sunken_edge))
						nexflag |= WS_EX_CLIENTEDGE;
					else
						nexflag &= ~(WS_EX_CLIENTEDGE);

					nflg = flag;
					if (conf_get_int(conf, is_full_screen() ?
CONF_scrollbar_in_fullscreen :
					CONF_scrollbar))
						nflg |= WS_VSCROLL;
					else
						nflg &= ~WS_VSCROLL;

					if (resize_action == RESIZE_DISABLED ||
						is_full_screen())
						nflg &= ~WS_THICKFRAME;
					else
						nflg |= WS_THICKFRAME;

					if (resize_action == RESIZE_DISABLED)
						nflg &= ~WS_MAXIMIZEBOX;
					else
						nflg |= WS_MAXIMIZEBOX;

					if (nflg != flag || nexflag != exflag) {
						if (nflg != flag)
							SetWindowLongPtr(hwnd, GWL_STYLE, nflg);
						if (nexflag != exflag)
							SetWindowLongPtr(hwnd, GWL_EXSTYLE, nexflag);

						SetWindowPos(hwnd, NULL, 0, 0, 0, 0,
							SWP_NOACTIVATE | SWP_NOCOPYBITS |
							SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER |
							SWP_FRAMECHANGED);

						init_lvl = 2;
					}
				}

				/* Oops */
				if (resize_action == RESIZE_DISABLED && IsZoomed(hwnd)) {
					force_normal(hwnd);
					init_lvl = 2;
				}

				set_title(NULL, conf_get_str(conf, CONF_wintitle));
				if (IsIconic(hwnd)) {
					SetWindowText(hwnd,
						conf_get_int(conf, CONF_win_name_always) ?
window_name : icon_name);
				}

				{
					FontSpec *font = conf_get_fontspec(conf, CONF_font);
					FontSpec *prev_font = conf_get_fontspec(prev_conf,
						CONF_font);

					if (!strcmp(font->name, prev_font->name) ||
						!strcmp(conf_get_str(conf, CONF_line_codepage),
						conf_get_str(prev_conf, CONF_line_codepage)) ||
						font->isbold != prev_font->isbold ||
						font->height != prev_font->height ||
						font->charset != prev_font->charset ||
						conf_get_int(conf, CONF_font_quality) !=
						conf_get_int(prev_conf, CONF_font_quality) ||
						conf_get_int(conf, CONF_vtmode) !=
						conf_get_int(prev_conf, CONF_vtmode) ||
						conf_get_int(conf, CONF_bold_style) !=
						conf_get_int(prev_conf, CONF_bold_style) ||
						resize_action == RESIZE_DISABLED ||
						resize_action == RESIZE_EITHER ||
						resize_action != conf_get_int(prev_conf,
						CONF_resize_action))
						init_lvl = 2;
				}

				InvalidateRect(hwnd, NULL, TRUE);
				reset_window(init_lvl);

				conf_free(prev_conf);
			}
			break;
		case IDM_COPYALL:
			term_copyall(term);
			break;
		case IDM_PASTE:
			request_paste(NULL);
			break;
		case IDM_CLRSB:
			term_clrsb(term);
			break;
		case IDM_RESET:
			term_pwron(term, TRUE);
			if (ldisc)
				ldisc_echoedit_update(ldisc);
			break;
		case IDM_ABOUT:
			showabout(hwnd);
			break;
		case IDM_HELP:
			launch_help(hwnd, NULL);
			break;
		case SC_MOUSEMENU:
			/*
			* We get this if the System menu has been activated
			* using the mouse.
			*/
			show_mouseptr(1);
			break;
		case SC_KEYMENU:
			/*
			* We get this if the System menu has been activated
			* using the keyboard. This might happen from within
			* TranslateKey, in which case it really wants to be
			* followed by a `space' character to actually _bring
			* the menu up_ rather than just sitting there in
			* `ready to appear' state.
			*/
			show_mouseptr(1);	       /* make sure pointer is visible */
			if( lParam == 0 )
				PostMessage(hwnd, WM_CHAR, ' ', 0);
			break;
		case IDM_FULLSCREEN:
			flip_full_screen();
			break;
		default:
			if (wParam >= IDM_MENU_MIN && wParam < IDM_MENU_MAX) {
				unsigned int menuid = wParam - IDM_MENU_MIN;
				autoRunScript(hwnd, menuid);
			}
			if (wParam >= IDM_SAVED_MIN && wParam < IDM_SAVED_MAX) {
				SendMessage(hwnd, WM_SYSCOMMAND, IDM_SAVEDSESS, wParam);
			}
			if (wParam >= IDM_SPECIAL_MIN && wParam <= IDM_SPECIAL_MAX) {
				int i = (wParam - IDM_SPECIAL_MIN) / 0x10;
				/*
				* Ensure we haven't been sent a bogus SYSCOMMAND
				* which would cause us to reference invalid memory
				* and crash. Perhaps I'm just too paranoid here.
				*/
				if (i >= n_specials)
					break;
				if (back)
					back->special(backhandle, specials[i].code);
			}
		}
		break;

#define X_POS(l) ((int)(short)LOWORD(l))
#define Y_POS(l) ((int)(short)HIWORD(l))

#define TO_CHR_X(x) ((((x)<0 ? (x)-font_width+1 : (x))-offset_width) / font_width)
#define TO_CHR_Y(y) ((((y)<0 ? (y)-font_height+1: (y))-offset_height) / font_height)
	case WM_LBUTTONDOWN:
	case WM_MBUTTONDOWN:
	case WM_RBUTTONDOWN:
	case WM_LBUTTONUP:
	case WM_MBUTTONUP:
	case WM_RBUTTONUP:
		if (message == WM_RBUTTONDOWN &&
			((wParam & MK_CONTROL) ||
			(conf_get_int(conf, CONF_mouse_is_xterm) == 2))) {
				POINT cursorpos;

				show_mouseptr(1);	       /* make sure pointer is visible */
				GetCursorPos(&cursorpos);
				TrackPopupMenu(popup_menus[CTXMENU].menu,
					TPM_LEFTALIGN | TPM_TOPALIGN | TPM_RIGHTBUTTON,
					cursorpos.x, cursorpos.y,
					0, hwnd, NULL);
				break;
		}
		{
			int button, press;

			switch (message) {
			case WM_LBUTTONDOWN:
				button = MBT_LEFT;
				wParam |= MK_LBUTTON;
				press = 1;
				break;
			case WM_MBUTTONDOWN:
				button = MBT_MIDDLE;
				wParam |= MK_MBUTTON;
				press = 1;
				break;
			case WM_RBUTTONDOWN:
				button = MBT_RIGHT;
				wParam |= MK_RBUTTON;
				press = 1;
				break;
			case WM_LBUTTONUP:
				button = MBT_LEFT;
				wParam &= ~MK_LBUTTON;
				press = 0;
				break;
			case WM_MBUTTONUP:
				button = MBT_MIDDLE;
				wParam &= ~MK_MBUTTON;
				press = 0;
				break;
			case WM_RBUTTONUP:
				button = MBT_RIGHT;
				wParam &= ~MK_RBUTTON;
				press = 0;
				break;
			default:
				button = press = 0;    /* shouldn't happen */
			}
			show_mouseptr(1);
			/*
			* Special case: in full-screen mode, if the left
			* button is clicked in the very top left corner of the
			* window, we put up the System menu instead of doing
			* selection.
			*/
			{
				char mouse_on_hotspot = 0;
				POINT pt;

				GetCursorPos(&pt);
#ifndef NO_MULTIMON
				{
					HMONITOR mon;
					MONITORINFO mi;

					mon = MonitorFromPoint(pt, MONITOR_DEFAULTTONULL);

					if (mon != NULL) {
						mi.cbSize = sizeof(MONITORINFO);
						GetMonitorInfo(mon, &mi);

						if (mi.rcMonitor.left == pt.x &&
							mi.rcMonitor.top == pt.y) {
								mouse_on_hotspot = 1;
						}
					}
				}
#else
				if (pt.x == 0 && pt.y == 0) {
					mouse_on_hotspot = 1;
				}
#endif
				if (is_full_screen() && press &&
					button == MBT_LEFT && mouse_on_hotspot) {
						SendMessage(hwnd, WM_SYSCOMMAND, SC_MOUSEMENU,
							MAKELPARAM(pt.x, pt.y));
						return 0;
				}
			}

			if (press) {
				click(button,
					TO_CHR_X(X_POS(lParam)), TO_CHR_Y(Y_POS(lParam)),
					wParam & MK_SHIFT, wParam & MK_CONTROL,
					is_alt_pressed());
				SetCapture(hwnd);
			} else {
				term_mouse(term, button, translate_button(button), MA_RELEASE,
					TO_CHR_X(X_POS(lParam)),
					TO_CHR_Y(Y_POS(lParam)), wParam & MK_SHIFT,
					wParam & MK_CONTROL, is_alt_pressed());
				if (!(wParam & (MK_LBUTTON | MK_MBUTTON | MK_RBUTTON)))
					ReleaseCapture();
			}
		}
		return 0;
	case WM_MOUSEMOVE:
		{
			/*
			* Windows seems to like to occasionally send MOUSEMOVE
			* events even if the mouse hasn't moved. Don't unhide
			* the mouse pointer in this case.
			*/
			static WPARAM wp = 0;
			static LPARAM lp = 0;
			if (wParam != wp || lParam != lp ||
				last_mousemove != WM_MOUSEMOVE) {
					show_mouseptr(1);
					wp = wParam; lp = lParam;
					last_mousemove = WM_MOUSEMOVE;
			}
		}
		/*
		* Add the mouse position and message time to the random
		* number noise.
		*/
		noise_ultralight(lParam);

		if (wParam & (MK_LBUTTON | MK_MBUTTON | MK_RBUTTON) &&
			GetCapture() == hwnd) {
				Mouse_Button b;
				if (wParam & MK_LBUTTON)
					b = MBT_LEFT;
				else if (wParam & MK_MBUTTON)
					b = MBT_MIDDLE;
				else
					b = MBT_RIGHT;
				term_mouse(term, b, translate_button(b), MA_DRAG,
					TO_CHR_X(X_POS(lParam)),
					TO_CHR_Y(Y_POS(lParam)), wParam & MK_SHIFT,
					wParam & MK_CONTROL, is_alt_pressed());
		}
		return 0;
	case WM_NCMOUSEMOVE:
		{
			static WPARAM wp = 0;
			static LPARAM lp = 0;
			if (wParam != wp || lParam != lp ||
				last_mousemove != WM_NCMOUSEMOVE) {
					show_mouseptr(1);
					wp = wParam; lp = lParam;
					last_mousemove = WM_NCMOUSEMOVE;
			}
		}
		noise_ultralight(lParam);
		break;
	case WM_IGNORE_CLIP:
		ignore_clip = wParam;	       /* don't panic on DESTROYCLIPBOARD */
		break;
	case WM_DESTROYCLIPBOARD:
		if (!ignore_clip)
			term_deselect(term);
		ignore_clip = FALSE;
		return 0;
	case WM_PAINT:
		{
			PAINTSTRUCT p;

			HideCaret(hwnd);
			hdc = BeginPaint(hwnd, &p);
			if (pal) {
				SelectPalette(hdc, pal, TRUE);
				RealizePalette(hdc);
			}

			/*
			* We have to be careful about term_paint(). It will
			* set a bunch of character cells to INVALID and then
			* call do_paint(), which will redraw those cells and
			* _then mark them as done_. This may not be accurate:
			* when painting in WM_PAINT context we are restricted
			* to the rectangle which has just been exposed - so if
			* that only covers _part_ of a character cell and the
			* rest of it was already visible, that remainder will
			* not be redrawn at all. Accordingly, we must not
			* paint any character cell in a WM_PAINT context which
			* already has a pending update due to terminal output.
			* The simplest solution to this - and many, many
			* thanks to Hung-Te Lin for working all this out - is
			* not to do any actual painting at _all_ if there's a
			* pending terminal update: just mark the relevant
			* character cells as INVALID and wait for the
			* scheduled full update to sort it out.
			* 
			* I have a suspicion this isn't the _right_ solution.
			* An alternative approach would be to have terminal.c
			* separately track what _should_ be on the terminal
			* screen and what _is_ on the terminal screen, and
			* have two completely different types of redraw (one
			* for full updates, which syncs the former with the
			* terminal itself, and one for WM_PAINT which syncs
			* the latter with the former); yet another possibility
			* would be to have the Windows front end do what the
			* GTK one already does, and maintain a bitmap of the
			* current terminal appearance so that WM_PAINT becomes
			* completely trivial. However, this should do for now.
			*/
			term_paint(term, hdc, 
				(p.rcPaint.left-offset_width)/font_width,
				(p.rcPaint.top-offset_height)/font_height,
				(p.rcPaint.right-offset_width-1)/font_width,
				(p.rcPaint.bottom-offset_height-1)/font_height,
				!term->window_update_pending);

			if (p.fErase ||
				p.rcPaint.left  < offset_width  ||
				p.rcPaint.top   < offset_height ||
				p.rcPaint.right >= offset_width + font_width*term->cols ||
				p.rcPaint.bottom>= offset_height + font_height*term->rows)
			{
				HBRUSH fillcolour, oldbrush;
				HPEN   edge, oldpen;
				fillcolour = CreateSolidBrush (
					colours[ATTR_DEFBG>>ATTR_BGSHIFT]);
				oldbrush = SelectObject(hdc, fillcolour);
				edge = CreatePen(PS_SOLID, 0, 
					colours[ATTR_DEFBG>>ATTR_BGSHIFT]);
				oldpen = SelectObject(hdc, edge);

				/*
				* Jordan Russell reports that this apparently
				* ineffectual IntersectClipRect() call masks a
				* Windows NT/2K bug causing strange display
				* problems when the PuTTY window is taller than
				* the primary monitor. It seems harmless enough...
				*/
				IntersectClipRect(hdc,
					p.rcPaint.left, p.rcPaint.top,
					p.rcPaint.right, p.rcPaint.bottom);

				ExcludeClipRect(hdc, 
					offset_width, offset_height,
					offset_width+font_width*term->cols,
					offset_height+font_height*term->rows);

				Rectangle(hdc, p.rcPaint.left, p.rcPaint.top, 
					p.rcPaint.right, p.rcPaint.bottom);

				/* SelectClipRgn(hdc, NULL); */

				SelectObject(hdc, oldbrush);
				DeleteObject(fillcolour);
				SelectObject(hdc, oldpen);
				DeleteObject(edge);
			}
			SelectObject(hdc, GetStockObject(SYSTEM_FONT));
			SelectObject(hdc, GetStockObject(WHITE_PEN));
			EndPaint(hwnd, &p);
			ShowCaret(hwnd);
		}
		return 0;
	case WM_NETEVENT:
		{
			/*
			* To protect against re-entrancy when Windows's recv()
			* immediately triggers a new WSAAsyncSelect window
			* message, we don't call select_result directly from this
			* handler but instead wait until we're back out at the
			* top level of the message loop.
			*/
			struct wm_netevent_params *params =
				snew(struct wm_netevent_params);
			params->wParam = wParam;
			params->lParam = lParam;
			queue_toplevel_callback(wm_netevent_callback, params);
		}
		return 0;
	case WM_SETFOCUS:
		term_set_focus(term, TRUE);
		CreateCaret(hwnd, caretbm, font_width, font_height);
		ShowCaret(hwnd);
		flash_window(0);	       /* stop */
		compose_state = 0;
		term_update(term);
		break;
	case WM_KILLFOCUS:
		show_mouseptr(1);
		term_set_focus(term, FALSE);
		DestroyCaret();
		caret_x = caret_y = -1;	       /* ensure caret is replaced next time */
		term_update(term);
		break;
	case WM_ENTERSIZEMOVE:
#ifdef RDB_DEBUG_PATCH
		debug((27, "WM_ENTERSIZEMOVE"));
#endif
		EnableSizeTip(1);
		resizing = TRUE;
		need_backend_resize = FALSE;
		break;
	case WM_EXITSIZEMOVE:
		EnableSizeTip(0);
		resizing = FALSE;
#ifdef RDB_DEBUG_PATCH
		debug((27, "WM_EXITSIZEMOVE"));
#endif
		if (need_backend_resize) {
			term_size(term, conf_get_int(conf, CONF_height),
				conf_get_int(conf, CONF_width),
				conf_get_int(conf, CONF_savelines));
			InvalidateRect(hwnd, NULL, TRUE);
		}
		break;
	case WM_SIZING:
		/*
		* This does two jobs:
		* 1) Keep the sizetip uptodate
		* 2) Make sure the window size is _stepped_ in units of the font size.
		*/
		resize_action = conf_get_int(conf, CONF_resize_action);
		if (resize_action == RESIZE_TERM ||
			(resize_action == RESIZE_EITHER && !is_alt_pressed())) {
				int width, height, w, h, ew, eh;
				LPRECT r = (LPRECT) lParam;

				if (!need_backend_resize && resize_action == RESIZE_EITHER &&
					(conf_get_int(conf, CONF_height) != term->rows ||
					conf_get_int(conf, CONF_width) != term->cols)) {
						/* 
						* Great! It seems that both the terminal size and the
						* font size have been changed and the user is now dragging.
						* 
						* It will now be difficult to get back to the configured
						* font size!
						*
						* This would be easier but it seems to be too confusing.
						*/
						conf_set_int(conf, CONF_height, term->rows);
						conf_set_int(conf, CONF_width, term->cols);

						InvalidateRect(hwnd, NULL, TRUE);
						need_backend_resize = TRUE;
				}

				width = r->right - r->left - extra_width;
				height = r->bottom - r->top - extra_height;
				w = (width + font_width / 2) / font_width;
				if (w < 1)
					w = 1;
				h = (height + font_height / 2) / font_height;
				if (h < 1)
					h = 1;
				UpdateSizeTip(hwnd, w, h);
				ew = width - w * font_width;
				eh = height - h * font_height;
				if (ew != 0) {
					if (wParam == WMSZ_LEFT ||
						wParam == WMSZ_BOTTOMLEFT || wParam == WMSZ_TOPLEFT)
						r->left += ew;
					else
						r->right -= ew;
				}
				if (eh != 0) {
					if (wParam == WMSZ_TOP ||
						wParam == WMSZ_TOPRIGHT || wParam == WMSZ_TOPLEFT)
						r->top += eh;
					else
						r->bottom -= eh;
				}
				if (ew || eh)
					return 1;
				else
					return 0;
		} else {
			int width, height, w, h, rv = 0;
			int window_border = conf_get_int(conf, CONF_window_border);
			int ex_width = extra_width + (window_border - offset_width) * 2;
			int ex_height = extra_height + (window_border - offset_height) * 2;
			LPRECT r = (LPRECT) lParam;

			width = r->right - r->left - ex_width;
			height = r->bottom - r->top - ex_height;

			w = (width + term->cols/2)/term->cols;
			h = (height + term->rows/2)/term->rows;
			if ( r->right != r->left + w*term->cols + ex_width)
				rv = 1;

			if (wParam == WMSZ_LEFT ||
				wParam == WMSZ_BOTTOMLEFT || wParam == WMSZ_TOPLEFT)
				r->left = r->right - w*term->cols - ex_width;
			else
				r->right = r->left + w*term->cols + ex_width;

			if (r->bottom != r->top + h*term->rows + ex_height)
				rv = 1;

			if (wParam == WMSZ_TOP ||
				wParam == WMSZ_TOPRIGHT || wParam == WMSZ_TOPLEFT)
				r->top = r->bottom - h*term->rows - ex_height;
			else
				r->bottom = r->top + h*term->rows + ex_height;

			return rv;
		}
		/* break;  (never reached) */
	case WM_FULLSCR_ON_MAX:
		fullscr_on_max = TRUE;
		break;
	case WM_MOVE:
		sys_cursor_update();
		break;
	case WM_SIZE:
		resize_action = conf_get_int(conf, CONF_resize_action);
#ifdef RDB_DEBUG_PATCH
		debug((27, "WM_SIZE %s (%d,%d)",
			(wParam == SIZE_MINIMIZED) ? "SIZE_MINIMIZED":
			(wParam == SIZE_MAXIMIZED) ? "SIZE_MAXIMIZED":
			(wParam == SIZE_RESTORED && resizing) ? "to":
			(wParam == SIZE_RESTORED) ? "SIZE_RESTORED":
			"...",
			LOWORD(lParam), HIWORD(lParam)));
#endif
		if (wParam == SIZE_MINIMIZED)
			SetWindowText(hwnd,
			conf_get_int(conf, CONF_win_name_always) ?
window_name : icon_name);
		if (wParam == SIZE_RESTORED || wParam == SIZE_MAXIMIZED)
			SetWindowText(hwnd, window_name);
		if (wParam == SIZE_RESTORED) {
			processed_resize = FALSE;
			clear_full_screen();
			if (processed_resize) {
				/*
				* Inhibit normal processing of this WM_SIZE; a
				* secondary one was triggered just now by
				* clear_full_screen which contained the correct
				* client area size.
				*/
				return 0;
			}
		}
		if (wParam == SIZE_MAXIMIZED && fullscr_on_max) {
			fullscr_on_max = FALSE;
			processed_resize = FALSE;
			make_full_screen();
			if (processed_resize) {
				/*
				* Inhibit normal processing of this WM_SIZE; a
				* secondary one was triggered just now by
				* make_full_screen which contained the correct client
				* area size.
				*/
				return 0;
			}
		}

		processed_resize = TRUE;

		if (resize_action == RESIZE_DISABLED) {
			/* A resize, well it better be a minimize. */
			reset_window(-1);
		} else {

			int width, height, w, h;
			int window_border = conf_get_int(conf, CONF_window_border);

			width = LOWORD(lParam);
			height = HIWORD(lParam);

			if (wParam == SIZE_MAXIMIZED && !was_zoomed) {
				was_zoomed = 1;
				prev_rows = term->rows;
				prev_cols = term->cols;
				if (resize_action == RESIZE_TERM) {
					w = width / font_width;
					if (w < 1) w = 1;
					h = height / font_height;
					if (h < 1) h = 1;

					if (resizing) {
						/*
						* As below, if we're in the middle of an
						* interactive resize we don't call
						* back->size. In Windows 7, this case can
						* arise in maximisation as well via the Aero
						* snap UI.
						*/
						need_backend_resize = TRUE;
						conf_set_int(conf, CONF_height, h);
						conf_set_int(conf, CONF_width, w);
					} else {
						term_size(term, h, w,
							conf_get_int(conf, CONF_savelines));
					}
				}
				reset_window(0);
			} else if (wParam == SIZE_RESTORED && was_zoomed) {
				was_zoomed = 0;
				if (resize_action == RESIZE_TERM) {
					w = (width-window_border*2) / font_width;
					if (w < 1) w = 1;
					h = (height-window_border*2) / font_height;
					if (h < 1) h = 1;
					term_size(term, h, w, conf_get_int(conf, CONF_savelines));
					reset_window(2);
				} else if (resize_action != RESIZE_FONT)
					reset_window(2);
				else
					reset_window(0);
			} else if (wParam == SIZE_MINIMIZED) {
				/* do nothing */
			} else if (resize_action == RESIZE_TERM ||
				(resize_action == RESIZE_EITHER &&
				!is_alt_pressed())) {
					w = (width-window_border*2) / font_width;
					if (w < 1) w = 1;
					h = (height-window_border*2) / font_height;
					if (h < 1) h = 1;

					if (resizing) {
						/*
						* Don't call back->size in mid-resize. (To
						* prevent massive numbers of resize events
						* getting sent down the connection during an NT
						* opaque drag.)
						*/
						need_backend_resize = TRUE;
						conf_set_int(conf, CONF_height, h);
						conf_set_int(conf, CONF_width, w);
					} else {
						term_size(term, h, w, conf_get_int(conf, CONF_savelines));
					}
			} else {
				reset_window(0);
			}
		}
		sys_cursor_update();
		return 0;
	case WM_VSCROLL:
		switch (LOWORD(wParam)) {
		case SB_BOTTOM:
			term_scroll(term, -1, 0);
			break;
		case SB_TOP:
			term_scroll(term, +1, 0);
			break;
		case SB_LINEDOWN:
			term_scroll(term, 0, +1);
			break;
		case SB_LINEUP:
			term_scroll(term, 0, -1);
			break;
		case SB_PAGEDOWN:
			term_scroll(term, 0, +term->rows / 2);
			break;
		case SB_PAGEUP:
			term_scroll(term, 0, -term->rows / 2);
			break;
		case SB_THUMBPOSITION:
		case SB_THUMBTRACK:
			/*
			* Use GetScrollInfo instead of HIWORD(wParam) to get
			* 32-bit scroll position.
			*/
			{
				SCROLLINFO si;

				si.cbSize = sizeof(si);
				si.fMask = SIF_TRACKPOS;
				if (GetScrollInfo(hwnd, SB_VERT, &si) == 0)
					si.nTrackPos = HIWORD(wParam);
				term_scroll(term, 1, si.nTrackPos);
			}
			break;
		}
		break;
	case WM_PALETTECHANGED:
		if ((HWND) wParam != hwnd && pal != NULL) {
			HDC hdc = get_ctx(NULL);
			if (hdc) {
				if (RealizePalette(hdc) > 0)
					UpdateColors(hdc);
				free_ctx(hdc);
			}
		}
		break;
	case WM_QUERYNEWPALETTE:
		if (pal != NULL) {
			HDC hdc = get_ctx(NULL);
			if (hdc) {
				if (RealizePalette(hdc) > 0)
					UpdateColors(hdc);
				free_ctx(hdc);
				return TRUE;
			}
		}
		return FALSE;
	case WM_KEYDOWN:
	case WM_SYSKEYDOWN:
	case WM_KEYUP:
	case WM_SYSKEYUP:
		/*
		* Add the scan code and keypress timing to the random
		* number noise.
		*/
		noise_ultralight(lParam);

		/*
		* We don't do TranslateMessage since it disassociates the
		* resulting CHAR message from the KEYDOWN that sparked it,
		* which we occasionally don't want. Instead, we process
		* KEYDOWN, and call the Win32 translator functions so that
		* we get the translations under _our_ control.
		*/
		{
			unsigned char buf[20];
			int len;

			if (wParam == VK_PROCESSKEY || /* IME PROCESS key */
				wParam == VK_PACKET) {     /* 'this key is a Unicode char' */
					if (message == WM_KEYDOWN) {
						MSG m;
						m.hwnd = hwnd;
						m.message = WM_KEYDOWN;
						m.wParam = wParam;
						m.lParam = lParam & 0xdfff;
						TranslateMessage(&m);
					}
					else 
					{
						break; /* pass to Windows for default processing */
					}
			} else {
				if ((wParam >= 112) && (wParam <= 136))
				{
					if (message == WM_KEYDOWN)
					{
						unsigned int menuid = wParam - 111;
						autoRunScript(hwnd, menuid);
					}
					break;
				}
				len = TranslateKey(message, wParam, lParam, buf);
				if (len == -1)
					return DefWindowProcW(hwnd, message, wParam, lParam);

				if (len != 0) {
					/*
					* We need not bother about stdin backlogs
					* here, because in GUI PuTTY we can't do
					* anything about it anyway; there's no means
					* of asking Windows to hold off on KEYDOWN
					* messages. We _have_ to buffer everything
					* we're sent.
					*/
					term_seen_key_event(term);
					if (ldisc)
						ldisc_send(ldisc, (char *)buf, len, 1);
					show_mouseptr(0);
				}
			}
		}
		return 0;
	case WM_INPUTLANGCHANGE:
		/* wParam == Font number */
		/* lParam == Locale */
		set_input_locale((HKL)lParam);
		sys_cursor_update();
		break;
	case WM_IME_STARTCOMPOSITION:
		{
			HIMC hImc = ImmGetContext(hwnd);
			ImmSetCompositionFont(hImc, &lfont);
			ImmReleaseContext(hwnd, hImc);
		}
		break;
	case WM_IME_COMPOSITION:
		{
			HIMC hIMC;
			int n;
			char *buff;

			if(osVersion.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS || 
				osVersion.dwPlatformId == VER_PLATFORM_WIN32s) break; /* no Unicode */

			if ((lParam & GCS_RESULTSTR) == 0) /* Composition unfinished. */
				break; /* fall back to DefWindowProc */

			hIMC = ImmGetContext(hwnd);
			n = ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, NULL, 0);

			if (n > 0) {
				int i;
				buff = snewn(n, char);
				ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, buff, n);
				/*
				* Jaeyoun Chung reports that Korean character
				* input doesn't work correctly if we do a single
				* luni_send() covering the whole of buff. So
				* instead we luni_send the characters one by one.
				*/
				term_seen_key_event(term);
				/* don't divide SURROGATE PAIR */
				if (ldisc) {
					for (i = 0; i < n; i += 2) {
						WCHAR hs = *(unsigned short *)(buff+i);
						if (IS_HIGH_SURROGATE(hs) && i+2 < n) {
							WCHAR ls = *(unsigned short *)(buff+i+2);
							if (IS_LOW_SURROGATE(ls)) {
								luni_send(ldisc, (unsigned short *)(buff+i), 2, 1);
								i += 2;
								continue;
							}
						}
						luni_send(ldisc, (unsigned short *)(buff+i), 1, 1);
					}
				}
				free(buff);
			}
			ImmReleaseContext(hwnd, hIMC);
			return 1;
		}

	case WM_IME_CHAR:
		if (wParam & 0xFF00) {
			char buf[2];

			buf[1] = wParam;
			buf[0] = wParam >> 8;
			term_seen_key_event(term);
			if (ldisc)
				lpage_send(ldisc, kbd_codepage, buf, 2, 1);
		} else {
			char c = (unsigned char) wParam;
			term_seen_key_event(term);
			if (ldisc)
				lpage_send(ldisc, kbd_codepage, &c, 1, 1);
		}
		return (0);
	case WM_CHAR:
	case WM_SYSCHAR:
		/*
		* Nevertheless, we are prepared to deal with WM_CHAR
		* messages, should they crop up. So if someone wants to
		* post the things to us as part of a macro manoeuvre,
		* we're ready to cope.
		*/
		{
			static wchar_t pending_surrogate = 0;
			wchar_t c = wParam;

			if (IS_HIGH_SURROGATE(c)) {
				pending_surrogate = c;
			} else if (IS_SURROGATE_PAIR(pending_surrogate, c)) {
				wchar_t pair[2];
				pair[0] = pending_surrogate;
				pair[1] = c;
				term_seen_key_event(term);
				luni_send(ldisc, pair, 2, 1);
			} else if (!IS_SURROGATE(c)) {
				term_seen_key_event(term);
				luni_send(ldisc, &c, 1, 1);
			}
		}
		return 0;
	case WM_SYSCOLORCHANGE:
		if (conf_get_int(conf, CONF_system_colour)) {
			/* Refresh palette from system colours. */
			/* XXX actually this zaps the entire palette. */
			systopalette();
			init_palette();
			/* Force a repaint of the terminal window. */
			term_invalidate(term);
		}
		break;
	case WM_AGENT_CALLBACK:
		{
			struct agent_callback *c = (struct agent_callback *)lParam;
			c->callback(c->callback_ctx, c->data, c->len);
			sfree(c);
		}
		return 0;
	case WM_GOT_CLIPDATA:
		if (process_clipdata((HGLOBAL)lParam, wParam))
			term_do_paste(term);
		return 0;
	default:
		if (message == wm_mousewheel || message == WM_MOUSEWHEEL) {
			int shift_pressed=0, control_pressed=0;

			if (message == WM_MOUSEWHEEL) {
				wheel_accumulator += (short)HIWORD(wParam);
				shift_pressed=LOWORD(wParam) & MK_SHIFT;
				control_pressed=LOWORD(wParam) & MK_CONTROL;
			} else {
				BYTE keys[256];
				wheel_accumulator += (int)wParam;
				if (GetKeyboardState(keys)!=0) {
					shift_pressed=keys[VK_SHIFT]&0x80;
					control_pressed=keys[VK_CONTROL]&0x80;
				}
			}

			/* process events when the threshold is reached */
			while (abs(wheel_accumulator) >= WHEEL_DELTA) {
				int b;

				/* reduce amount for next time */
				if (wheel_accumulator > 0) {
					b = MBT_WHEEL_UP;
					wheel_accumulator -= WHEEL_DELTA;
				} else if (wheel_accumulator < 0) {
					b = MBT_WHEEL_DOWN;
					wheel_accumulator += WHEEL_DELTA;
				} else
					break;

				if (send_raw_mouse &&
					!(conf_get_int(conf, CONF_mouse_override) &&
					shift_pressed)) {
						/* Mouse wheel position is in screen coordinates for
						* some reason */
						POINT p;
						p.x = X_POS(lParam); p.y = Y_POS(lParam);
						if (ScreenToClient(hwnd, &p)) {
							/* send a mouse-down followed by a mouse up */
							term_mouse(term, b, translate_button(b),
								MA_CLICK,
								TO_CHR_X(p.x),
								TO_CHR_Y(p.y), shift_pressed,
								control_pressed, is_alt_pressed());
						} /* else: not sure when this can fail */
				} else {
					/* trigger a scroll */
					term_scroll(term, 0,
						b == MBT_WHEEL_UP ?
						-term->rows / 2 : term->rows / 2);
				}
			}
			return 0;
		}
	}

	/*
	* Any messages we don't process completely above are passed through to
	* DefWindowProc() for default processing.
	*/
	return DefWindowProcW(hwnd, message, wParam, lParam);
}

/*
* Move the system caret. (We maintain one, even though it's
* invisible, for the benefit of blind people: apparently some
* helper software tracks the system caret, so we should arrange to
* have one.)
*/
void sys_cursor(void *frontend, int x, int y)
{
	int cx, cy;

	if (!term->has_focus) return;

	/*
	* Avoid gratuitously re-updating the cursor position and IMM
	* window if there's no actual change required.
	*/
	cx = x * font_width + offset_width;
	cy = y * font_height + offset_height;
	if (cx == caret_x && cy == caret_y)
		return;
	caret_x = cx;
	caret_y = cy;

	sys_cursor_update();
}

static void sys_cursor_update(void)
{
	COMPOSITIONFORM cf;
	HIMC hIMC;

	if (!term->has_focus) return;

	if (caret_x < 0 || caret_y < 0)
		return;

	SetCaretPos(caret_x, caret_y);

	/* IMM calls on Win98 and beyond only */
	if(osVersion.dwPlatformId == VER_PLATFORM_WIN32s) return; /* 3.11 */

	if(osVersion.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS &&
		osVersion.dwMinorVersion == 0) return; /* 95 */

	/* we should have the IMM functions */
	hIMC = ImmGetContext(hwnd);
	cf.dwStyle = CFS_POINT;
	cf.ptCurrentPos.x = caret_x;
	cf.ptCurrentPos.y = caret_y;
	ImmSetCompositionWindow(hIMC, &cf);

	ImmReleaseContext(hwnd, hIMC);
}

/*
* Draw a line of text in the window, at given character
* coordinates, in given attributes.
*
* We are allowed to fiddle with the contents of `text'.
*/
void do_text_internal(Context ctx, int x, int y, wchar_t *text, int len,
	unsigned long attr, int lattr)
{
	COLORREF fg, bg, t;
	int nfg, nbg, nfont;
	HDC hdc = ctx;
	RECT line_box;
	int force_manual_underline = 0;
	int fnt_width, char_width;
	int text_adjust = 0;
	int xoffset = 0;
	int maxlen, remaining, opaque;
	int is_cursor = FALSE;
	static int *lpDx = NULL;
	static int lpDx_len = 0;
	int *lpDx_maybe;
	int len2; /* for SURROGATE PAIR */

	lattr &= LATTR_MODE;

	char_width = fnt_width = font_width * (1 + (lattr != LATTR_NORM));

	if (attr & ATTR_WIDE)
		char_width *= 2;

	/* Only want the left half of double width lines */
	if (lattr != LATTR_NORM && x*2 >= term->cols)
		return;

	x *= fnt_width;
	y *= font_height;
	x += offset_width;
	y += offset_height;

	if ((attr & TATTR_ACTCURS) && (cursor_type == 0 || term->big_cursor)) {
		attr &= ~(ATTR_REVERSE|ATTR_BLINK|ATTR_COLOURS);
		/* cursor fg and bg */
		attr |= (260 << ATTR_FGSHIFT) | (261 << ATTR_BGSHIFT);
		is_cursor = TRUE;
	}

	nfont = 0;
	if (vtmode == VT_POORMAN && lattr != LATTR_NORM) {
		/* Assume a poorman font is borken in other ways too. */
		lattr = LATTR_WIDE;
	} else
		switch (lattr) {
		case LATTR_NORM:
			break;
		case LATTR_WIDE:
			nfont |= FONT_WIDE;
			break;
		default:
			nfont |= FONT_WIDE + FONT_HIGH;
			break;
	}
	if (attr & ATTR_NARROW)
		nfont |= FONT_NARROW;

#ifdef USES_VTLINE_HACK
	/* Special hack for the VT100 linedraw glyphs. */
	if (text[0] >= 0x23BA && text[0] <= 0x23BD) {
		switch ((unsigned char) (text[0])) {
		case 0xBA:
			text_adjust = -2 * font_height / 5;
			break;
		case 0xBB:
			text_adjust = -1 * font_height / 5;
			break;
		case 0xBC:
			text_adjust = font_height / 5;
			break;
		case 0xBD:
			text_adjust = 2 * font_height / 5;
			break;
		}
		if (lattr == LATTR_TOP || lattr == LATTR_BOT)
			text_adjust *= 2;
		text[0] = ucsdata.unitab_xterm['q'];
		if (attr & ATTR_UNDER) {
			attr &= ~ATTR_UNDER;
			force_manual_underline = 1;
		}
	}
#endif

	/* Anything left as an original character set is unprintable. */
	if (DIRECT_CHAR(text[0]) &&
		(len < 2 || !IS_SURROGATE_PAIR(text[0], text[1]))) {
			int i;
			for (i = 0; i < len; i++)
				text[i] = 0xFFFD;
	}

	/* OEM CP */
	if ((text[0] & CSET_MASK) == CSET_OEMCP)
		nfont |= FONT_OEM;

	nfg = ((attr & ATTR_FGMASK) >> ATTR_FGSHIFT);
	nbg = ((attr & ATTR_BGMASK) >> ATTR_BGSHIFT);
	if (bold_font_mode == BOLD_FONT && (attr & ATTR_BOLD))
		nfont |= FONT_BOLD;
	if (und_mode == UND_FONT && (attr & ATTR_UNDER))
		nfont |= FONT_UNDERLINE;
	another_font(nfont);
	if (!fonts[nfont]) {
		if (nfont & FONT_UNDERLINE)
			force_manual_underline = 1;
		/* Don't do the same for manual bold, it could be bad news. */

		nfont &= ~(FONT_BOLD | FONT_UNDERLINE);
	}
	another_font(nfont);
	if (!fonts[nfont])
		nfont = FONT_NORMAL;
	if (attr & ATTR_REVERSE) {
		t = nfg;
		nfg = nbg;
		nbg = t;
	}
	if (bold_colours && (attr & ATTR_BOLD) && !is_cursor) {
		if (nfg < 16) nfg |= 8;
		else if (nfg >= 256) nfg |= 1;
	}
	if (bold_colours && (attr & ATTR_BLINK)) {
		if (nbg < 16) nbg |= 8;
		else if (nbg >= 256) nbg |= 1;
	}
	fg = colours[nfg];
	bg = colours[nbg];
	SelectObject(hdc, fonts[nfont]);
	SetTextColor(hdc, fg);
	SetBkColor(hdc, bg);
	if (attr & TATTR_COMBINING)
		SetBkMode(hdc, TRANSPARENT);
	else
		SetBkMode(hdc, OPAQUE);
	line_box.left = x;
	line_box.top = y;
	line_box.right = x + char_width * len;
	line_box.bottom = y + font_height;
	/* adjust line_box.right for SURROGATE PAIR & VARIATION SELECTOR */
	{
		int i;
		int rc_width = 0;
		for (i = 0; i < len ; i++) {
			if (i+1 < len && IS_HIGH_VARSEL(text[i], text[i+1])) {
				i++;
			} else if (i+1 < len && IS_SURROGATE_PAIR(text[i], text[i+1])) {
				rc_width += char_width;
				i++;
			} else if (IS_LOW_VARSEL(text[i])) {
				/* do nothing */
			} else {
				rc_width += char_width;
			}
		}
		line_box.right = line_box.left + rc_width;
	}

	/* Only want the left half of double width lines */
	if (line_box.right > font_width*term->cols+offset_width)
		line_box.right = font_width*term->cols+offset_width;

	if (font_varpitch) {
		/*
		* If we're using a variable-pitch font, we unconditionally
		* draw the glyphs one at a time and centre them in their
		* character cells (which means in particular that we must
		* disable the lpDx mechanism). This gives slightly odd but
		* generally reasonable results.
		*/
		xoffset = char_width / 2;
		SetTextAlign(hdc, TA_TOP | TA_CENTER | TA_NOUPDATECP);
		lpDx_maybe = NULL;
		maxlen = 1;
	} else {
		/*
		* In a fixed-pitch font, we draw the whole string in one go
		* in the normal way.
		*/
		xoffset = 0;
		SetTextAlign(hdc, TA_TOP | TA_LEFT | TA_NOUPDATECP);
		lpDx_maybe = lpDx;
		maxlen = len;
	}

	opaque = TRUE;                     /* start by erasing the rectangle */
	for (remaining = len; remaining > 0;
		text += len, remaining -= len, x += char_width * len2) {
			len = (maxlen < remaining ? maxlen : remaining);
			/* don't divide SURROGATE PAIR and VARIATION SELECTOR */
			len2 = len;
			if (maxlen == 1) {
				if (remaining >= 1 && IS_SURROGATE_PAIR(text[0], text[1]))
					len++;
				if (remaining-len >= 1 && IS_LOW_VARSEL(text[len]))
					len++;
				else if (remaining-len >= 2 &&
					IS_HIGH_VARSEL(text[len], text[len+1]))
					len += 2;
			}

			if (len > lpDx_len) {
				lpDx_len = len * 9 / 8 + 16;
				lpDx = sresize(lpDx, lpDx_len, int);

				if (lpDx_maybe) lpDx_maybe = lpDx;
			}

			{
				int i;
				/* only last char has dx width in SURROGATE PAIR and
				* VARIATION sequence */
				for (i = 0; i < len; i++) {
					lpDx[i] = char_width;
					if (i+1 < len && IS_HIGH_VARSEL(text[i], text[i+1])) {
						if (i > 0) lpDx[i-1] = 0;
						lpDx[i] = 0;
						i++;
						lpDx[i] = char_width;
					} else if (i+1 < len && IS_SURROGATE_PAIR(text[i],text[i+1])) {
						lpDx[i] = 0;
						i++;
						lpDx[i] = char_width;
					} else if (IS_LOW_VARSEL(text[i])) {
						if (i > 0) lpDx[i-1] = 0;
						lpDx[i] = char_width;
					}
				}
			}

			/* We're using a private area for direct to font. (512 chars.) */
			if (ucsdata.dbcs_screenfont && (text[0] & CSET_MASK) == CSET_ACP) {
				/* Ho Hum, dbcs fonts are a PITA! */
				/* To display on W9x I have to convert to UCS */
				static wchar_t *uni_buf = 0;
				static int uni_len = 0;
				int nlen, mptr;
				if (len > uni_len) {
					sfree(uni_buf);
					uni_len = len;
					uni_buf = snewn(uni_len, wchar_t);
				}

				for(nlen = mptr = 0; mptr<len; mptr++) {
					uni_buf[nlen] = 0xFFFD;
					if (IsDBCSLeadByteEx(ucsdata.font_codepage,
						(BYTE) text[mptr])) {
							char dbcstext[2];
							dbcstext[0] = text[mptr] & 0xFF;
							dbcstext[1] = text[mptr+1] & 0xFF;
							lpDx[nlen] += char_width;
							MultiByteToWideChar(ucsdata.font_codepage, MB_USEGLYPHCHARS,
								dbcstext, 2, uni_buf+nlen, 1);
							mptr++;
					}
					else
					{
						char dbcstext[1];
						dbcstext[0] = text[mptr] & 0xFF;
						MultiByteToWideChar(ucsdata.font_codepage, MB_USEGLYPHCHARS,
							dbcstext, 1, uni_buf+nlen, 1);
					}
					nlen++;
				}
				if (nlen <= 0)
					return;		       /* Eeek! */

				ExtTextOutW(hdc, x + xoffset,
					y - font_height * (lattr == LATTR_BOT) + text_adjust,
					ETO_CLIPPED | (opaque ? ETO_OPAQUE : 0),
					&line_box, uni_buf, nlen,
					lpDx_maybe);
				if (bold_font_mode == BOLD_SHADOW && (attr & ATTR_BOLD)) {
					SetBkMode(hdc, TRANSPARENT);
					ExtTextOutW(hdc, x + xoffset - 1,
						y - font_height * (lattr ==
						LATTR_BOT) + text_adjust,
						ETO_CLIPPED, &line_box, uni_buf, nlen, lpDx_maybe);
				}

				lpDx[0] = -1;
			} else if (DIRECT_FONT(text[0])) {
				static char *directbuf = NULL;
				static int directlen = 0;
				int i;
				if (len > directlen) {
					directlen = len;
					directbuf = sresize(directbuf, directlen, char);
				}

				for (i = 0; i < len; i++)
					directbuf[i] = text[i] & 0xFF;

				ExtTextOut(hdc, x + xoffset,
					y - font_height * (lattr == LATTR_BOT) + text_adjust,
					ETO_CLIPPED | (opaque ? ETO_OPAQUE : 0),
					&line_box, directbuf, len, lpDx_maybe);
				if (bold_font_mode == BOLD_SHADOW && (attr & ATTR_BOLD)) {
					SetBkMode(hdc, TRANSPARENT);

					/* GRR: This draws the character outside its box and
					* can leave 'droppings' even with the clip box! I
					* suppose I could loop it one character at a time ...
					* yuk.
					* 
					* Or ... I could do a test print with "W", and use +1
					* or -1 for this shift depending on if the leftmost
					* column is blank...
					*/
					ExtTextOut(hdc, x + xoffset - 1,
						y - font_height * (lattr ==
						LATTR_BOT) + text_adjust,
						ETO_CLIPPED, &line_box, directbuf, len, lpDx_maybe);
				}
			} else {
				/* And 'normal' unicode characters */
				static WCHAR *wbuf = NULL;
				static int wlen = 0;
				int i;

				if (wlen < len) {
					sfree(wbuf);
					wlen = len;
					wbuf = snewn(wlen, WCHAR);
				}

				for (i = 0; i < len; i++)
					wbuf[i] = text[i];

				/* print Glyphs as they are, without Windows' Shaping*/
				general_textout(hdc, x + xoffset,
					y - font_height * (lattr==LATTR_BOT) + text_adjust,
					&line_box, wbuf, len, lpDx,
					opaque && !(attr & TATTR_COMBINING));

				/* And the shadow bold hack. */
				if (bold_font_mode == BOLD_SHADOW && (attr & ATTR_BOLD)) {
					SetBkMode(hdc, TRANSPARENT);
					ExtTextOutW(hdc, x + xoffset - 1,
						y - font_height * (lattr ==
						LATTR_BOT) + text_adjust,
						ETO_CLIPPED, &line_box, wbuf, len, lpDx_maybe);
				}
			}

			/*
			* If we're looping round again, stop erasing the background
			* rectangle.
			*/
			SetBkMode(hdc, TRANSPARENT);
			opaque = FALSE;
	}
	if (lattr != LATTR_TOP && (force_manual_underline ||
		(und_mode == UND_LINE
		&& (attr & ATTR_UNDER)))) {
			HPEN oldpen;
			int dec = descent;
			if (lattr == LATTR_BOT)
				dec = dec * 2 - font_height;

			oldpen = SelectObject(hdc, CreatePen(PS_SOLID, 0, fg));
			MoveToEx(hdc, line_box.left, line_box.top + dec, NULL);
			LineTo(hdc, line_box.right, line_box.top + dec);
			oldpen = SelectObject(hdc, oldpen);
			DeleteObject(oldpen);
	}
}

/*
* Wrapper that handles combining characters.
*/
void do_text(Context ctx, int x, int y, wchar_t *text, int len,
	unsigned long attr, int lattr)
{
	if (attr & TATTR_COMBINING) {
		unsigned long a = 0;
		int len0 = 1;
		/* don't divide SURROGATE PAIR and VARIATION SELECTOR */
		if (len >= 2 && IS_SURROGATE_PAIR(text[0], text[1]))
			len0 = 2;
		if (len-len0 >= 1 && IS_LOW_VARSEL(text[len0])) {
			attr &= ~TATTR_COMBINING;
			do_text_internal(ctx, x, y, text, len0+1, attr, lattr);
			text += len0+1;
			len -= len0+1;
			a = TATTR_COMBINING;
		} else if (len-len0 >= 2 && IS_HIGH_VARSEL(text[len0], text[len0+1])) {
			attr &= ~TATTR_COMBINING;
			do_text_internal(ctx, x, y, text, len0+2, attr, lattr);
			text += len0+2;
			len -= len0+2;
			a = TATTR_COMBINING;
		} else {
			attr &= ~TATTR_COMBINING;
		}

		while (len--) {
			if (len >= 1 && IS_SURROGATE_PAIR(text[0], text[1])) {
				do_text_internal(ctx, x, y, text, 2, attr | a, lattr);
				len--;
				text++;
			} else {
				do_text_internal(ctx, x, y, text, 1, attr | a, lattr);
			}

			text++;
			a = TATTR_COMBINING;
		}
	} else
		do_text_internal(ctx, x, y, text, len, attr, lattr);
}

void do_cursor(Context ctx, int x, int y, wchar_t *text, int len,
	unsigned long attr, int lattr)
{

	int fnt_width;
	int char_width;
	HDC hdc = ctx;
	int ctype = cursor_type;

	lattr &= LATTR_MODE;

	if ((attr & TATTR_ACTCURS) && (ctype == 0 || term->big_cursor)) {
		if (*text != UCSWIDE) {
			do_text(ctx, x, y, text, len, attr, lattr);
			return;
		}
		ctype = 2;
		attr |= TATTR_RIGHTCURS;
	}

	fnt_width = char_width = font_width * (1 + (lattr != LATTR_NORM));
	if (attr & ATTR_WIDE)
		char_width *= 2;
	x *= fnt_width;
	y *= font_height;
	x += offset_width;
	y += offset_height;

	if ((attr & TATTR_PASCURS) && (ctype == 0 || term->big_cursor)) {
		POINT pts[5];
		HPEN oldpen;
		pts[0].x = pts[1].x = pts[4].x = x;
		pts[2].x = pts[3].x = x + char_width - 1;
		pts[0].y = pts[3].y = pts[4].y = y;
		pts[1].y = pts[2].y = y + font_height - 1;
		oldpen = SelectObject(hdc, CreatePen(PS_SOLID, 0, colours[261]));
		Polyline(hdc, pts, 5);
		oldpen = SelectObject(hdc, oldpen);
		DeleteObject(oldpen);
	} else if ((attr & (TATTR_ACTCURS | TATTR_PASCURS)) && ctype != 0) {
		int startx, starty, dx, dy, length, i;
		if (ctype == 1) {
			startx = x;
			starty = y + descent;
			dx = 1;
			dy = 0;
			length = char_width;
		} else {
			int xadjust = 0;
			if (attr & TATTR_RIGHTCURS)
				xadjust = char_width - 1;
			startx = x + xadjust;
			starty = y;
			dx = 0;
			dy = 1;
			length = font_height;
		}
		if (attr & TATTR_ACTCURS) {
			HPEN oldpen;
			oldpen =
				SelectObject(hdc, CreatePen(PS_SOLID, 0, colours[261]));
			MoveToEx(hdc, startx, starty, NULL);
			LineTo(hdc, startx + dx * length, starty + dy * length);
			oldpen = SelectObject(hdc, oldpen);
			DeleteObject(oldpen);
		} else {
			for (i = 0; i < length; i++) {
				if (i % 2 == 0) {
					SetPixel(hdc, startx, starty, colours[261]);
				}
				startx += dx;
				starty += dy;
			}
		}
	}
}

/* This function gets the actual width of a character in the normal font.
*/
int char_width(Context ctx, int uc) {
	HDC hdc = ctx;
	int ibuf = 0;

	/* If the font max is the same as the font ave width then this
	* function is a no-op.
	*/
	if (!font_dualwidth) return 1;

	switch (uc & CSET_MASK) {
	case CSET_ASCII:
		uc = ucsdata.unitab_line[uc & 0xFF];
		break;
	case CSET_LINEDRW:
		uc = ucsdata.unitab_xterm[uc & 0xFF];
		break;
	case CSET_SCOACS:
		uc = ucsdata.unitab_scoacs[uc & 0xFF];
		break;
	}
	if (DIRECT_FONT(uc)) {
		if (ucsdata.dbcs_screenfont) return 1;

		/* Speedup, I know of no font where ascii is the wrong width */
		if ((uc&~CSET_MASK) >= ' ' && (uc&~CSET_MASK)<= '~')
			return 1;

		if ( (uc & CSET_MASK) == CSET_ACP ) {
			SelectObject(hdc, fonts[FONT_NORMAL]);
		} else if ( (uc & CSET_MASK) == CSET_OEMCP ) {
			another_font(FONT_OEM);
			if (!fonts[FONT_OEM]) return 0;

			SelectObject(hdc, fonts[FONT_OEM]);
		} else
			return 0;

		if ( GetCharWidth32(hdc, uc&~CSET_MASK, uc&~CSET_MASK, &ibuf) != 1 &&
			GetCharWidth(hdc, uc&~CSET_MASK, uc&~CSET_MASK, &ibuf) != 1)
			return 0;
	} else {
		/* Speedup, I know of no font where ascii is the wrong width */
		if (uc >= ' ' && uc <= '~') return 1;

		SelectObject(hdc, fonts[FONT_NORMAL]);
		if ( GetCharWidth32W(hdc, uc, uc, &ibuf) == 1 )
			/* Okay that one worked */ ;
		else if ( GetCharWidthW(hdc, uc, uc, &ibuf) == 1 )
			/* This should work on 9x too, but it's "less accurate" */ ;
		else
			return 0;
	}

	ibuf += font_width / 2 -1;
	ibuf /= font_width;

	return ibuf;
}

DECL_WINDOWS_FUNCTION(static, BOOL, FlashWindowEx, (PFLASHWINFO));
DECL_WINDOWS_FUNCTION(static, BOOL, ToUnicodeEx,
	(UINT, UINT, const BYTE *, LPWSTR, int, UINT, HKL));
DECL_WINDOWS_FUNCTION(static, BOOL, PlaySound, (LPCTSTR, HMODULE, DWORD));

static void init_winfuncs(void)
{
	HMODULE user32_module = load_system32_dll("user32.dll");
	HMODULE winmm_module = load_system32_dll("winmm.dll");
	GET_WINDOWS_FUNCTION(user32_module, FlashWindowEx);
	GET_WINDOWS_FUNCTION(user32_module, ToUnicodeEx);
	GET_WINDOWS_FUNCTION_PP(winmm_module, PlaySound);
}

/*
* Translate a WM_(SYS)?KEY(UP|DOWN) message into a string of ASCII
* codes. Returns number of bytes used, zero to drop the message,
* -1 to forward the message to Windows, or another negative number
* to indicate a NUL-terminated "special" string.
*/
static int TranslateKey(UINT message, WPARAM wParam, LPARAM lParam,
	unsigned char *output)
{
	BYTE keystate[256];
	int scan, left_alt = 0, key_down, shift_state;
	int r, i, code;
	unsigned char *p = output;
	static int alt_sum = 0;
	int funky_type = conf_get_int(conf, CONF_funky_type);
	int no_applic_k = conf_get_int(conf, CONF_no_applic_k);
	int ctrlaltkeys = conf_get_int(conf, CONF_ctrlaltkeys);
	int nethack_keypad = conf_get_int(conf, CONF_nethack_keypad);

	HKL kbd_layout = GetKeyboardLayout(0);

	static wchar_t keys_unicode[3];
	static int compose_char = 0;
	static WPARAM compose_keycode = 0;

	r = GetKeyboardState(keystate);
	if (!r)
		memset(keystate, 0, sizeof(keystate));
	else {
		if (wParam == VK_MENU && (HIWORD(lParam) & KF_EXTENDED)) {
			keystate[VK_RMENU] = keystate[VK_MENU];
		}

		/* Nastyness with NUMLock - Shift-NUMLock is left alone though */
		if ((funky_type == FUNKY_VT400 ||
			(funky_type <= FUNKY_LINUX && term->app_keypad_keys &&
			!no_applic_k))
			&& wParam == VK_NUMLOCK && !(keystate[VK_SHIFT] & 0x80)) {

				wParam = VK_EXECUTE;

				/* UnToggle NUMLock */
				if ((HIWORD(lParam) & (KF_UP | KF_REPEAT)) == 0)
					keystate[VK_NUMLOCK] ^= 1;
		}

		/* And write back the 'adjusted' state */
		SetKeyboardState(keystate);
	}

	/* Disable Auto repeat if required */
	if (term->repeat_off &&
		(HIWORD(lParam) & (KF_UP | KF_REPEAT)) == KF_REPEAT)
		return 0;

	if ((HIWORD(lParam) & KF_ALTDOWN) && (keystate[VK_RMENU] & 0x80) == 0)
		left_alt = 1;

	key_down = ((HIWORD(lParam) & KF_UP) == 0);

	/* Make sure Ctrl-ALT is not the same as AltGr for ToAscii unless told. */
	if (left_alt && (keystate[VK_CONTROL] & 0x80)) {
		if (ctrlaltkeys)
			keystate[VK_MENU] = 0;
		else {
			keystate[VK_RMENU] = 0x80;
			left_alt = 0;
		}
	}

	scan = (HIWORD(lParam) & (KF_UP | KF_EXTENDED | 0xFF));
	shift_state = ((keystate[VK_SHIFT] & 0x80) != 0)
		+ ((keystate[VK_CONTROL] & 0x80) != 0) * 2;

	/* Note if AltGr was pressed and if it was used as a compose key */
	if (!compose_state) {
		compose_keycode = 0x100;
		if (conf_get_int(conf, CONF_compose_key)) {
			if (wParam == VK_MENU && (HIWORD(lParam) & KF_EXTENDED))
				compose_keycode = wParam;
		}
		if (wParam == VK_APPS)
			compose_keycode = wParam;
	}

	if (wParam == compose_keycode) {
		if (compose_state == 0
			&& (HIWORD(lParam) & (KF_UP | KF_REPEAT)) == 0) compose_state =
			1;
		else if (compose_state == 1 && (HIWORD(lParam) & KF_UP))
			compose_state = 2;
		else
			compose_state = 0;
	} else if (compose_state == 1 && wParam != VK_CONTROL)
		compose_state = 0;

	if (compose_state > 1 && left_alt)
		compose_state = 0;

	/* Sanitize the number pad if not using a PC NumPad */
	if (left_alt || (term->app_keypad_keys && !no_applic_k
		&& funky_type != FUNKY_XTERM)
		|| funky_type == FUNKY_VT400 || nethack_keypad || compose_state) {
			if ((HIWORD(lParam) & KF_EXTENDED) == 0) {
				int nParam = 0;
				switch (wParam) {
				case VK_INSERT:
					nParam = VK_NUMPAD0;
					break;
				case VK_END:
					nParam = VK_NUMPAD1;
					break;
				case VK_DOWN:
					nParam = VK_NUMPAD2;
					break;
				case VK_NEXT:
					nParam = VK_NUMPAD3;
					break;
				case VK_LEFT:
					nParam = VK_NUMPAD4;
					break;
				case VK_CLEAR:
					nParam = VK_NUMPAD5;
					break;
				case VK_RIGHT:
					nParam = VK_NUMPAD6;
					break;
				case VK_HOME:
					nParam = VK_NUMPAD7;
					break;
				case VK_UP:
					nParam = VK_NUMPAD8;
					break;
				case VK_PRIOR:
					nParam = VK_NUMPAD9;
					break;
				case VK_DELETE:
					nParam = VK_DECIMAL;
					break;
				}
				if (nParam) {
					if (keystate[VK_NUMLOCK] & 1)
						shift_state |= 1;
					wParam = nParam;
				}
			}
	}

	/* If a key is pressed and AltGr is not active */
	if (key_down && (keystate[VK_RMENU] & 0x80) == 0 && !compose_state) {
		/* Okay, prepare for most alts then ... */
		if (left_alt)
			*p++ = '\033';

		/* Lets see if it's a pattern we know all about ... */
		if (wParam == VK_PRIOR && shift_state == 1) {
			SendMessage(hwnd, WM_VSCROLL, SB_PAGEUP, 0);
			return 0;
		}
		if (wParam == VK_PRIOR && shift_state == 2) {
			SendMessage(hwnd, WM_VSCROLL, SB_LINEUP, 0);
			return 0;
		}
		if (wParam == VK_NEXT && shift_state == 1) {
			SendMessage(hwnd, WM_VSCROLL, SB_PAGEDOWN, 0);
			return 0;
		}
		if (wParam == VK_NEXT && shift_state == 2) {
			SendMessage(hwnd, WM_VSCROLL, SB_LINEDOWN, 0);
			return 0;
		}
		if ((wParam == VK_PRIOR || wParam == VK_NEXT) && shift_state == 3) {
			term_scroll_to_selection(term, (wParam == VK_PRIOR ? 0 : 1));
			return 0;
		}
		if (wParam == VK_INSERT && shift_state == 1) {
			request_paste(NULL);
			return 0;
		}
		if (left_alt && wParam == VK_F4 && conf_get_int(conf, CONF_alt_f4)) {
			return -1;
		}
		if (left_alt && wParam == VK_SPACE && conf_get_int(conf,
			CONF_alt_space)) {
				SendMessage(hwnd, WM_SYSCOMMAND, SC_KEYMENU, 0);
				return -1;
		}
		if (left_alt && wParam == VK_RETURN &&
			conf_get_int(conf, CONF_fullscreenonaltenter) &&
			(conf_get_int(conf, CONF_resize_action) != RESIZE_DISABLED)) {
				if ((HIWORD(lParam) & (KF_UP | KF_REPEAT)) != KF_REPEAT)
					flip_full_screen();
				return -1;
		}
		/* Control-Numlock for app-keypad mode switch */
		if (wParam == VK_PAUSE && shift_state == 2) {
			term->app_keypad_keys ^= 1;
			return 0;
		}

		/* Nethack keypad */
		if (nethack_keypad && !left_alt) {
			switch (wParam) {
			case VK_NUMPAD1:
				*p++ = "bB\002\002"[shift_state & 3];
				return p - output;
			case VK_NUMPAD2:
				*p++ = "jJ\012\012"[shift_state & 3];
				return p - output;
			case VK_NUMPAD3:
				*p++ = "nN\016\016"[shift_state & 3];
				return p - output;
			case VK_NUMPAD4:
				*p++ = "hH\010\010"[shift_state & 3];
				return p - output;
			case VK_NUMPAD5:
				*p++ = '.';
				return p - output;
			case VK_NUMPAD6:
				*p++ = "lL\014\014"[shift_state & 3];
				return p - output;
			case VK_NUMPAD7:
				*p++ = "yY\031\031"[shift_state & 3];
				return p - output;
			case VK_NUMPAD8:
				*p++ = "kK\013\013"[shift_state & 3];
				return p - output;
			case VK_NUMPAD9:
				*p++ = "uU\025\025"[shift_state & 3];
				return p - output;
			}
		}

		/* Application Keypad */
		if (!left_alt) {
			int xkey = 0;

			if (funky_type == FUNKY_VT400 ||
				(funky_type <= FUNKY_LINUX &&
				term->app_keypad_keys && !no_applic_k)) switch (wParam) {
				case VK_EXECUTE:
					xkey = 'P';
					break;
				case VK_DIVIDE:
					xkey = 'Q';
					break;
				case VK_MULTIPLY:
					xkey = 'R';
					break;
				case VK_SUBTRACT:
					xkey = 'S';
					break;
			}
			if (term->app_keypad_keys && !no_applic_k)
				switch (wParam) {
				case VK_NUMPAD0:
					xkey = 'p';
					break;
				case VK_NUMPAD1:
					xkey = 'q';
					break;
				case VK_NUMPAD2:
					xkey = 'r';
					break;
				case VK_NUMPAD3:
					xkey = 's';
					break;
				case VK_NUMPAD4:
					xkey = 't';
					break;
				case VK_NUMPAD5:
					xkey = 'u';
					break;
				case VK_NUMPAD6:
					xkey = 'v';
					break;
				case VK_NUMPAD7:
					xkey = 'w';
					break;
				case VK_NUMPAD8:
					xkey = 'x';
					break;
				case VK_NUMPAD9:
					xkey = 'y';
					break;

				case VK_DECIMAL:
					xkey = 'n';
					break;
				case VK_ADD:
					if (funky_type == FUNKY_XTERM) {
						if (shift_state)
							xkey = 'l';
						else
							xkey = 'k';
					} else if (shift_state)
						xkey = 'm';
					else
						xkey = 'l';
					break;

				case VK_DIVIDE:
					if (funky_type == FUNKY_XTERM)
						xkey = 'o';
					break;
				case VK_MULTIPLY:
					if (funky_type == FUNKY_XTERM)
						xkey = 'j';
					break;
				case VK_SUBTRACT:
					if (funky_type == FUNKY_XTERM)
						xkey = 'm';
					break;

				case VK_RETURN:
					if (HIWORD(lParam) & KF_EXTENDED)
						xkey = 'M';
					break;
			}
			if (xkey) {
				if (term->vt52_mode) {
					if (xkey >= 'P' && xkey <= 'S')
						p += sprintf((char *) p, "\x1B%c", xkey);
					else
						p += sprintf((char *) p, "\x1B?%c", xkey);
				} else
					p += sprintf((char *) p, "\x1BO%c", xkey);
				return p - output;
			}
		}

		if (wParam == VK_BACK && shift_state == 0) {	/* Backspace */
			*p++ = (conf_get_int(conf, CONF_bksp_is_delete) ? 0x7F : 0x08);
			*p++ = 0;
			return -2;
		}
		if (wParam == VK_BACK && shift_state == 1) {	/* Shift Backspace */
			/* We do the opposite of what is configured */
			*p++ = (conf_get_int(conf, CONF_bksp_is_delete) ? 0x08 : 0x7F);
			*p++ = 0;
			return -2;
		}
		if (wParam == VK_TAB && shift_state == 1) {	/* Shift tab */
			*p++ = 0x1B;
			*p++ = '[';
			*p++ = 'Z';
			return p - output;
		}
		if (wParam == VK_SPACE && shift_state == 2) {	/* Ctrl-Space */
			*p++ = 0;
			return p - output;
		}
		if (wParam == VK_SPACE && shift_state == 3) {	/* Ctrl-Shift-Space */
			*p++ = 160;
			return p - output;
		}
		if (wParam == VK_CANCEL && shift_state == 2) {	/* Ctrl-Break */
			if (back)
				back->special(backhandle, TS_BRK);
			return 0;
		}
		if (wParam == VK_PAUSE) {      /* Break/Pause */
			*p++ = 26;
			*p++ = 0;
			return -2;
		}
		/* Control-2 to Control-8 are special */
		if (shift_state == 2 && wParam >= '2' && wParam <= '8') {
			*p++ = "\000\033\034\035\036\037\177"[wParam - '2'];
			return p - output;
		}
		if (shift_state == 2 && (wParam == 0xBD || wParam == 0xBF)) {
			*p++ = 0x1F;
			return p - output;
		}
		if (shift_state == 2 && (wParam == 0xDF || wParam == 0xDC)) {
			*p++ = 0x1C;
			return p - output;
		}
		if (shift_state == 3 && wParam == 0xDE) {
			*p++ = 0x1E;	       /* Ctrl-~ == Ctrl-^ in xterm at least */
			return p - output;
		}
		if (shift_state == 0 && wParam == VK_RETURN && term->cr_lf_return) {
			*p++ = '\r';
			*p++ = '\n';
			return p - output;
		}

		/*
		* Next, all the keys that do tilde codes. (ESC '[' nn '~',
		* for integer decimal nn.)
		*
		* We also deal with the weird ones here. Linux VCs replace F1
		* to F5 by ESC [ [ A to ESC [ [ E. rxvt doesn't do _that_, but
		* does replace Home and End (1~ and 4~) by ESC [ H and ESC O w
		* respectively.
		*/
		code = 0;
		switch (wParam) {
		case VK_F1:
			code = (keystate[VK_SHIFT] & 0x80 ? 23 : 11);
			break;
		case VK_F2:
			code = (keystate[VK_SHIFT] & 0x80 ? 24 : 12);
			break;
		case VK_F3:
			code = (keystate[VK_SHIFT] & 0x80 ? 25 : 13);
			break;
		case VK_F4:
			code = (keystate[VK_SHIFT] & 0x80 ? 26 : 14);
			break;
		case VK_F5:
			code = (keystate[VK_SHIFT] & 0x80 ? 28 : 15);
			break;
		case VK_F6:
			code = (keystate[VK_SHIFT] & 0x80 ? 29 : 17);
			break;
		case VK_F7:
			code = (keystate[VK_SHIFT] & 0x80 ? 31 : 18);
			break;
		case VK_F8:
			code = (keystate[VK_SHIFT] & 0x80 ? 32 : 19);
			break;
		case VK_F9:
			code = (keystate[VK_SHIFT] & 0x80 ? 33 : 20);
			break;
		case VK_F10:
			code = (keystate[VK_SHIFT] & 0x80 ? 34 : 21);
			break;
		case VK_F11:
			code = 23;
			break;
		case VK_F12:
			code = 24;
			break;
		case VK_F13:
			code = 25;
			break;
		case VK_F14:
			code = 26;
			break;
		case VK_F15:
			code = 28;
			break;
		case VK_F16:
			code = 29;
			break;
		case VK_F17:
			code = 31;
			break;
		case VK_F18:
			code = 32;
			break;
		case VK_F19:
			code = 33;
			break;
		case VK_F20:
			code = 34;
			break;
		}
		if ((shift_state&2) == 0) switch (wParam) {
		case VK_HOME:
			code = 1;
			break;
		case VK_INSERT:
			code = 2;
			break;
		case VK_DELETE:
			code = 3;
			break;
		case VK_END:
			code = 4;
			break;
		case VK_PRIOR:
			code = 5;
			break;
		case VK_NEXT:
			code = 6;
			break;
		}
		/* Reorder edit keys to physical order */
		if (funky_type == FUNKY_VT400 && code <= 6)
			code = "\0\2\1\4\5\3\6"[code];

		if (term->vt52_mode && code > 0 && code <= 6) {
			p += sprintf((char *) p, "\x1B%c", " HLMEIG"[code]);
			return p - output;
		}

		if (funky_type == FUNKY_SCO && code >= 11 && code <= 34) {
			/* SCO function keys */
			char codes[] = "MNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz@[\\]^_`{";
			int index = 0;
			switch (wParam) {
			case VK_F1: index = 0; break;
			case VK_F2: index = 1; break;
			case VK_F3: index = 2; break;
			case VK_F4: index = 3; break;
			case VK_F5: index = 4; break;
			case VK_F6: index = 5; break;
			case VK_F7: index = 6; break;
			case VK_F8: index = 7; break;
			case VK_F9: index = 8; break;
			case VK_F10: index = 9; break;
			case VK_F11: index = 10; break;
			case VK_F12: index = 11; break;
			}
			if (keystate[VK_SHIFT] & 0x80) index += 12;
			if (keystate[VK_CONTROL] & 0x80) index += 24;
			p += sprintf((char *) p, "\x1B[%c", codes[index]);
			return p - output;
		}
		if (funky_type == FUNKY_SCO &&     /* SCO small keypad */
			code >= 1 && code <= 6) {
				char codes[] = "HL.FIG";
				if (code == 3) {
					*p++ = '\x7F';
				} else {
					p += sprintf((char *) p, "\x1B[%c", codes[code-1]);
				}
				return p - output;
		}
		if ((term->vt52_mode || funky_type == FUNKY_VT100P) && code >= 11 && code <= 24) {
			int offt = 0;
			if (code > 15)
				offt++;
			if (code > 21)
				offt++;
			if (term->vt52_mode)
				p += sprintf((char *) p, "\x1B%c", code + 'P' - 11 - offt);
			else
				p +=
				sprintf((char *) p, "\x1BO%c", code + 'P' - 11 - offt);
			return p - output;
		}
		if (funky_type == FUNKY_LINUX && code >= 11 && code <= 15) {
			p += sprintf((char *) p, "\x1B[[%c", code + 'A' - 11);
			return p - output;
		}
		if (funky_type == FUNKY_XTERM && code >= 11 && code <= 14) {
			if (term->vt52_mode)
				p += sprintf((char *) p, "\x1B%c", code + 'P' - 11);
			else
				p += sprintf((char *) p, "\x1BO%c", code + 'P' - 11);
			return p - output;
		}
		if ((code == 1 || code == 4) &&
			conf_get_int(conf, CONF_rxvt_homeend)) {
				p += sprintf((char *) p, code == 1 ? "\x1B[H" : "\x1BOw");
				return p - output;
		}
		if (code) {
			p += sprintf((char *) p, "\x1B[%d~", code);
			return p - output;
		}

		/*
		* Now the remaining keys (arrows and Keypad 5. Keypad 5 for
		* some reason seems to send VK_CLEAR to Windows...).
		*/
		{
			char xkey = 0;
			switch (wParam) {
			case VK_UP:
				xkey = 'A';
				break;
			case VK_DOWN:
				xkey = 'B';
				break;
			case VK_RIGHT:
				xkey = 'C';
				break;
			case VK_LEFT:
				xkey = 'D';
				break;
			case VK_CLEAR:
				xkey = 'G';
				break;
			}
			if (xkey) {
				p += format_arrow_key((char *)p, term, xkey, shift_state);
				return p - output;
			}
		}

		/*
		* Finally, deal with Return ourselves. (Win95 seems to
		* foul it up when Alt is pressed, for some reason.)
		*/
		if (wParam == VK_RETURN) {     /* Return */
			*p++ = 0x0D;
			*p++ = 0;
			return -2;
		}

		if (left_alt && wParam >= VK_NUMPAD0 && wParam <= VK_NUMPAD9)
			alt_sum = alt_sum * 10 + wParam - VK_NUMPAD0;
		else
			alt_sum = 0;
	}

	/* Okay we've done everything interesting; let windows deal with 
	* the boring stuff */
	{
		BOOL capsOn=0;

		/* helg: clear CAPS LOCK state if caps lock switches to cyrillic */
		if(keystate[VK_CAPITAL] != 0 &&
			conf_get_int(conf, CONF_xlat_capslockcyr)) {
				capsOn= !left_alt;
				keystate[VK_CAPITAL] = 0;
		}

		/* XXX how do we know what the max size of the keys array should
		* be is? There's indication on MS' website of an Inquire/InquireEx
		* functioning returning a KBINFO structure which tells us. */
		if (osVersion.dwPlatformId == VER_PLATFORM_WIN32_NT && p_ToUnicodeEx) {
			r = p_ToUnicodeEx(wParam, scan, keystate, keys_unicode,
				lenof(keys_unicode), 0, kbd_layout);
		} else {
			/* XXX 'keys' parameter is declared in MSDN documentation as
			* 'LPWORD lpChar'.
			* The experience of a French user indicates that on
			* Win98, WORD[] should be passed in, but on Win2K, it should
			* be BYTE[]. German WinXP and my Win2K with "US International"
			* driver corroborate this.
			* Experimentally I've conditionalised the behaviour on the
			* Win9x/NT split, but I suspect it's worse than that.
			* See wishlist item `win-dead-keys' for more horrible detail
			* and speculations. */
			int i;
			static WORD keys[3];
			static BYTE keysb[3];
			r = ToAsciiEx(wParam, scan, keystate, keys, 0, kbd_layout);
			if (r > 0) {
				for (i = 0; i < r; i++) {
					keysb[i] = (BYTE)keys[i];
				}
				MultiByteToWideChar(CP_ACP, 0, (LPCSTR)keysb, r,
					keys_unicode, lenof(keys_unicode));
			}
		}
#ifdef SHOW_TOASCII_RESULT
		if (r == 1 && !key_down) {
			if (alt_sum) {
				if (in_utf(term) || ucsdata.dbcs_screenfont)
					debug((", (U+%04x)", alt_sum));
				else
					debug((", LCH(%d)", alt_sum));
			} else {
				debug((", ACH(%d)", keys_unicode[0]));
			}
		} else if (r > 0) {
			int r1;
			debug((", ASC("));
			for (r1 = 0; r1 < r; r1++) {
				debug(("%s%d", r1 ? "," : "", keys_unicode[r1]));
			}
			debug((")"));
		}
#endif
		if (r > 0) {
			WCHAR keybuf;

			p = output;
			for (i = 0; i < r; i++) {
				wchar_t wch = keys_unicode[i];

				if (compose_state == 2 && wch >= ' ' && wch < 0x80) {
					compose_char = wch;
					compose_state++;
					continue;
				}
				if (compose_state == 3 && wch >= ' ' && wch < 0x80) {
					int nc;
					compose_state = 0;

					if ((nc = check_compose(compose_char, wch)) == -1) {
						MessageBeep(MB_ICONHAND);
						return 0;
					}
					keybuf = nc;
					term_seen_key_event(term);
					if (ldisc)
						luni_send(ldisc, &keybuf, 1, 1);
					continue;
				}

				compose_state = 0;

				if (!key_down) {
					if (alt_sum) {
						if (in_utf(term) || ucsdata.dbcs_screenfont) {
							keybuf = alt_sum;
							term_seen_key_event(term);
							if (ldisc)
								luni_send(ldisc, &keybuf, 1, 1);
						} else {
							char ch = (char) alt_sum;
							/*
							* We need not bother about stdin
							* backlogs here, because in GUI PuTTY
							* we can't do anything about it
							* anyway; there's no means of asking
							* Windows to hold off on KEYDOWN
							* messages. We _have_ to buffer
							* everything we're sent.
							*/
							term_seen_key_event(term);
							if (ldisc)
								ldisc_send(ldisc, &ch, 1, 1);
						}
						alt_sum = 0;
					} else {
						term_seen_key_event(term);
						if (ldisc)
							luni_send(ldisc, &wch, 1, 1);
					}
				} else {
					if(capsOn && wch < 0x80) {
						WCHAR cbuf[2];
						cbuf[0] = 27;
						cbuf[1] = xlat_uskbd2cyrllic(wch);
						term_seen_key_event(term);
						if (ldisc)
							luni_send(ldisc, cbuf+!left_alt, 1+!!left_alt, 1);
					} else {
						WCHAR cbuf[2];
						cbuf[0] = '\033';
						cbuf[1] = wch;
						term_seen_key_event(term);
						if (ldisc)
							luni_send(ldisc, cbuf +!left_alt, 1+!!left_alt, 1);
					}
				}
				show_mouseptr(0);
			}

			/* This is so the ALT-Numpad and dead keys work correctly. */
			keys_unicode[0] = 0;

			return p - output;
		}
		/* If we're definitely not building up an ALT-54321 then clear it */
		if (!left_alt)
			keys_unicode[0] = 0;
		/* If we will be using alt_sum fix the 256s */
		else if (keys_unicode[0] && (in_utf(term) || ucsdata.dbcs_screenfont))
			keys_unicode[0] = 10;
	}

	/*
	* ALT alone may or may not want to bring up the System menu.
	* If it's not meant to, we return 0 on presses or releases of
	* ALT, to show that we've swallowed the keystroke. Otherwise
	* we return -1, which means Windows will give the keystroke
	* its default handling (i.e. bring up the System menu).
	*/
	if (wParam == VK_MENU && !conf_get_int(conf, CONF_alt_only))
		return 0;

	return -1;
}

void set_title(void *frontend, char *title)
{
	sfree(window_name);
	window_name = snewn(1 + strlen(title), char);
	strcpy(window_name, title);
	if (conf_get_int(conf, CONF_win_name_always) || !IsIconic(hwnd))
		SetWindowText(hwnd, title);
}

void set_icon(void *frontend, char *title)
{
	sfree(icon_name);
	icon_name = snewn(1 + strlen(title), char);
	strcpy(icon_name, title);
	if (!conf_get_int(conf, CONF_win_name_always) && IsIconic(hwnd))
		SetWindowText(hwnd, title);
}

void set_sbar(void *frontend, int total, int start, int page)
{
	SCROLLINFO si;

	if (!conf_get_int(conf, is_full_screen() ?
CONF_scrollbar_in_fullscreen : CONF_scrollbar))
							   return;

	si.cbSize = sizeof(si);
	si.fMask = SIF_ALL | SIF_DISABLENOSCROLL;
	si.nMin = 0;
	si.nMax = total - 1;
	si.nPage = page;
	si.nPos = start;
	if (hwnd)
		SetScrollInfo(hwnd, SB_VERT, &si, TRUE);
}

Context get_ctx(void *frontend)
{
	HDC hdc;
	if (hwnd) {
		hdc = GetDC(hwnd);
		if (hdc && pal)
			SelectPalette(hdc, pal, FALSE);
		return hdc;
	} else
		return NULL;
}

void free_ctx(Context ctx)
{
	SelectPalette(ctx, GetStockObject(DEFAULT_PALETTE), FALSE);
	ReleaseDC(hwnd, ctx);
}

static void real_palette_set(int n, int r, int g, int b)
{
	if (pal) {
		logpal->palPalEntry[n].peRed = r;
		logpal->palPalEntry[n].peGreen = g;
		logpal->palPalEntry[n].peBlue = b;
		logpal->palPalEntry[n].peFlags = PC_NOCOLLAPSE;
		colours[n] = PALETTERGB(r, g, b);
		SetPaletteEntries(pal, 0, NALLCOLOURS, logpal->palPalEntry);
	} else
		colours[n] = RGB(r, g, b);
}

void palette_set(void *frontend, int n, int r, int g, int b)
{
	if (n >= 16)
		n += 256 - 16;
	if (n >= NALLCOLOURS)
		return;
	real_palette_set(n, r, g, b);
	if (pal) {
		HDC hdc = get_ctx(frontend);
		UnrealizeObject(pal);
		RealizePalette(hdc);
		free_ctx(hdc);
	} else {
		if (n == (ATTR_DEFBG>>ATTR_BGSHIFT))
			/* If Default Background changes, we need to ensure any
			* space between the text area and the window border is
			* redrawn. */
			InvalidateRect(hwnd, NULL, TRUE);
	}
}

void palette_reset(void *frontend)
{
	int i;

	/* And this */
	for (i = 0; i < NALLCOLOURS; i++) {
		if (pal) {
			logpal->palPalEntry[i].peRed = defpal[i].rgbtRed;
			logpal->palPalEntry[i].peGreen = defpal[i].rgbtGreen;
			logpal->palPalEntry[i].peBlue = defpal[i].rgbtBlue;
			logpal->palPalEntry[i].peFlags = 0;
			colours[i] = PALETTERGB(defpal[i].rgbtRed,
				defpal[i].rgbtGreen,
				defpal[i].rgbtBlue);
		} else
			colours[i] = RGB(defpal[i].rgbtRed,
			defpal[i].rgbtGreen, defpal[i].rgbtBlue);
	}

	if (pal) {
		HDC hdc;
		SetPaletteEntries(pal, 0, NALLCOLOURS, logpal->palPalEntry);
		hdc = get_ctx(frontend);
		RealizePalette(hdc);
		free_ctx(hdc);
	} else {
		/* Default Background may have changed. Ensure any space between
		* text area and window border is redrawn. */
		InvalidateRect(hwnd, NULL, TRUE);
	}
}

void write_aclip(void *frontend, char *data, int len, int must_deselect)
{
	HGLOBAL clipdata;
	void *lock;

	clipdata = GlobalAlloc(GMEM_DDESHARE | GMEM_MOVEABLE, len + 1);
	if (!clipdata)
		return;
	lock = GlobalLock(clipdata);
	if (!lock)
		return;
	memcpy(lock, data, len);
	((unsigned char *) lock)[len] = 0;
	GlobalUnlock(clipdata);

	if (!must_deselect)
		SendMessage(hwnd, WM_IGNORE_CLIP, TRUE, 0);

	if (OpenClipboard(hwnd)) {
		EmptyClipboard();
		SetClipboardData(CF_TEXT, clipdata);
		CloseClipboard();
	} else
		GlobalFree(clipdata);

	if (!must_deselect)
		SendMessage(hwnd, WM_IGNORE_CLIP, FALSE, 0);
}

/*
* Note: unlike write_aclip() this will not append a nul.
*/
void write_clip(void *frontend, wchar_t * data, int *attr, int len, int must_deselect)
{
	HGLOBAL clipdata, clipdata2, clipdata3;
	int len2;
	void *lock, *lock2, *lock3;

	len2 = WideCharToMultiByte(CP_ACP, 0, data, len, 0, 0, NULL, NULL);

	clipdata = GlobalAlloc(GMEM_DDESHARE | GMEM_MOVEABLE,
		len * sizeof(wchar_t));
	clipdata2 = GlobalAlloc(GMEM_DDESHARE | GMEM_MOVEABLE, len2);

	if (!clipdata || !clipdata2) {
		if (clipdata)
			GlobalFree(clipdata);
		if (clipdata2)
			GlobalFree(clipdata2);
		return;
	}
	if (!(lock = GlobalLock(clipdata))) {
		GlobalFree(clipdata);
		GlobalFree(clipdata2);
		return;
	}
	if (!(lock2 = GlobalLock(clipdata2))) {
		GlobalUnlock(clipdata);
		GlobalFree(clipdata);
		GlobalFree(clipdata2);
		return;
	}

	memcpy(lock, data, len * sizeof(wchar_t));
	WideCharToMultiByte(CP_ACP, 0, data, len, lock2, len2, NULL, NULL);

	if (conf_get_int(conf, CONF_rtf_paste)) {
		wchar_t unitab[256];
		char *rtf = NULL;
		unsigned char *tdata = (unsigned char *)lock2;
		wchar_t *udata = (wchar_t *)lock;
		int rtflen = 0, uindex = 0, tindex = 0;
		int rtfsize = 0;
		int multilen, blen, alen, totallen, i;
		char before[16], after[4];
		int fgcolour,  lastfgcolour  = 0;
		int bgcolour,  lastbgcolour  = 0;
		int attrBold,  lastAttrBold  = 0;
		int attrUnder, lastAttrUnder = 0;
		int palette[NALLCOLOURS];
		int numcolours;
		FontSpec *font = conf_get_fontspec(conf, CONF_font);

		get_unitab(CP_ACP, unitab, 0);

		rtfsize = 100 + strlen(font->name);
		rtf = snewn(rtfsize, char);
		rtflen = sprintf(rtf, "{\\rtf1\\ansi\\deff0{\\fonttbl\\f0\\fmodern %s;}\\f0\\fs%d",
			font->name, font->height*2);

		/*
		* Add colour palette
		* {\colortbl ;\red255\green0\blue0;\red0\green0\blue128;}
		*/

		/*
		* First - Determine all colours in use
		*    o  Foregound and background colours share the same palette
		*/
		if (attr) {
			memset(palette, 0, sizeof(palette));
			for (i = 0; i < (len-1); i++) {
				fgcolour = ((attr[i] & ATTR_FGMASK) >> ATTR_FGSHIFT);
				bgcolour = ((attr[i] & ATTR_BGMASK) >> ATTR_BGSHIFT);

				if (attr[i] & ATTR_REVERSE) {
					int tmpcolour = fgcolour;	/* Swap foreground and background */
					fgcolour = bgcolour;
					bgcolour = tmpcolour;
				}

				if (bold_colours && (attr[i] & ATTR_BOLD)) {
					if (fgcolour  <   8)	/* ANSI colours */
						fgcolour +=   8;
					else if (fgcolour >= 256)	/* Default colours */
						fgcolour ++;
				}

				if (attr[i] & ATTR_BLINK) {
					if (bgcolour  <   8)	/* ANSI colours */
						bgcolour +=   8;
					else if (bgcolour >= 256)	/* Default colours */
						bgcolour ++;
				}

				palette[fgcolour]++;
				palette[bgcolour]++;
			}

			/*
			* Next - Create a reduced palette
			*/
			numcolours = 0;
			for (i = 0; i < NALLCOLOURS; i++) {
				if (palette[i] != 0)
					palette[i]  = ++numcolours;
			}

			/*
			* Finally - Write the colour table
			*/
			rtf = sresize(rtf, rtfsize + (numcolours * 25), char);
			strcat(rtf, "{\\colortbl ;");
			rtflen = strlen(rtf);

			for (i = 0; i < NALLCOLOURS; i++) {
				if (palette[i] != 0) {
					rtflen += sprintf(&rtf[rtflen], "\\red%d\\green%d\\blue%d;", defpal[i].rgbtRed, defpal[i].rgbtGreen, defpal[i].rgbtBlue);
				}
			}
			strcpy(&rtf[rtflen], "}");
			rtflen ++;
		}

		/*
		* We want to construct a piece of RTF that specifies the
		* same Unicode text. To do this we will read back in
		* parallel from the Unicode data in `udata' and the
		* non-Unicode data in `tdata'. For each character in
		* `tdata' which becomes the right thing in `udata' when
		* looked up in `unitab', we just copy straight over from
		* tdata. For each one that doesn't, we must WCToMB it
		* individually and produce a \u escape sequence.
		* 
		* It would probably be more robust to just bite the bullet
		* and WCToMB each individual Unicode character one by one,
		* then MBToWC each one back to see if it was an accurate
		* translation; but that strikes me as a horrifying number
		* of Windows API calls so I want to see if this faster way
		* will work. If it screws up badly we can always revert to
		* the simple and slow way.
		*/
		while (tindex < len2 && uindex < len &&
			tdata[tindex] && udata[uindex]) {
				if (tindex + 1 < len2 &&
					tdata[tindex] == '\r' &&
					tdata[tindex+1] == '\n') {
						tindex++;
						uindex++;
				}

				/*
				* Set text attributes
				*/
				if (attr) {
					if (rtfsize < rtflen + 64) {
						rtfsize = rtflen + 512;
						rtf = sresize(rtf, rtfsize, char);
					}

					/*
					* Determine foreground and background colours
					*/
					fgcolour = ((attr[tindex] & ATTR_FGMASK) >> ATTR_FGSHIFT);
					bgcolour = ((attr[tindex] & ATTR_BGMASK) >> ATTR_BGSHIFT);

					if (attr[tindex] & ATTR_REVERSE) {
						int tmpcolour = fgcolour;	    /* Swap foreground and background */
						fgcolour = bgcolour;
						bgcolour = tmpcolour;
					}

					if (bold_colours && (attr[tindex] & ATTR_BOLD)) {
						if (fgcolour  <   8)	    /* ANSI colours */
							fgcolour +=   8;
						else if (fgcolour >= 256)	    /* Default colours */
							fgcolour ++;
					}

					if (attr[tindex] & ATTR_BLINK) {
						if (bgcolour  <   8)	    /* ANSI colours */
							bgcolour +=   8;
						else if (bgcolour >= 256)	    /* Default colours */
							bgcolour ++;
					}

					/*
					* Collect other attributes
					*/
					if (bold_font_mode != BOLD_NONE)
						attrBold  = attr[tindex] & ATTR_BOLD;
					else
						attrBold  = 0;

					attrUnder = attr[tindex] & ATTR_UNDER;

					/*
					* Reverse video
					*   o  If video isn't reversed, ignore colour attributes for default foregound
					*	or background.
					*   o  Special case where bolded text is displayed using the default foregound
					*      and background colours - force to bolded RTF.
					*/
					if (!(attr[tindex] & ATTR_REVERSE)) {
						if (bgcolour >= 256)	    /* Default color */
							bgcolour  = -1;		    /* No coloring */

						if (fgcolour >= 256) {	    /* Default colour */
							if (bold_colours && (fgcolour & 1) && bgcolour == -1)
								attrBold = ATTR_BOLD;   /* Emphasize text with bold attribute */

							fgcolour  = -1;		    /* No coloring */
						}
					}

					/*
					* Write RTF text attributes
					*/
					if (lastfgcolour != fgcolour) {
						lastfgcolour  = fgcolour;
						rtflen       += sprintf(&rtf[rtflen], "\\cf%d ", (fgcolour >= 0) ? palette[fgcolour] : 0);
					}

					if (lastbgcolour != bgcolour) {
						lastbgcolour  = bgcolour;
						rtflen       += sprintf(&rtf[rtflen], "\\highlight%d ", (bgcolour >= 0) ? palette[bgcolour] : 0);
					}

					if (lastAttrBold != attrBold) {
						lastAttrBold  = attrBold;
						rtflen       += sprintf(&rtf[rtflen], "%s", attrBold ? "\\b " : "\\b0 ");
					}

					if (lastAttrUnder != attrUnder) {
						lastAttrUnder  = attrUnder;
						rtflen        += sprintf(&rtf[rtflen], "%s", attrUnder ? "\\ul " : "\\ulnone ");
					}
				}

				if (unitab[tdata[tindex]] == udata[uindex]) {
					multilen = 1;
					before[0] = '\0';
					after[0] = '\0';
					blen = alen = 0;
				} else {
					multilen = WideCharToMultiByte(CP_ACP, 0, unitab+uindex, 1,
						NULL, 0, NULL, NULL);
					if (multilen != 1) {
						blen = sprintf(before, "{\\uc%d\\u%d", (int)multilen,
							(int)udata[uindex]);
						alen = 1; strcpy(after, "}");
					} else {
						blen = sprintf(before, "\\u%d", udata[uindex]);
						alen = 0; after[0] = '\0';
					}
				}
				assert(tindex + multilen <= len2);
				totallen = blen + alen;
				for (i = 0; i < multilen; i++) {
					if (tdata[tindex+i] == '\\' ||
						tdata[tindex+i] == '{' ||
						tdata[tindex+i] == '}')
						totallen += 2;
					else if (tdata[tindex+i] == 0x0D || tdata[tindex+i] == 0x0A)
						totallen += 6;     /* \par\r\n */
					else if (tdata[tindex+i] > 0x7E || tdata[tindex+i] < 0x20)
						totallen += 4;
					else
						totallen++;
				}

				if (rtfsize < rtflen + totallen + 3) {
					rtfsize = rtflen + totallen + 512;
					rtf = sresize(rtf, rtfsize, char);
				}

				strcpy(rtf + rtflen, before); rtflen += blen;
				for (i = 0; i < multilen; i++) {
					if (tdata[tindex+i] == '\\' ||
						tdata[tindex+i] == '{' ||
						tdata[tindex+i] == '}') {
							rtf[rtflen++] = '\\';
							rtf[rtflen++] = tdata[tindex+i];
					} else if (tdata[tindex+i] == 0x0D || tdata[tindex+i] == 0x0A) {
						rtflen += sprintf(rtf+rtflen, "\\par\r\n");
					} else if (tdata[tindex+i] > 0x7E || tdata[tindex+i] < 0x20) {
						rtflen += sprintf(rtf+rtflen, "\\'%02x", tdata[tindex+i]);
					} else {
						rtf[rtflen++] = tdata[tindex+i];
					}
				}
				strcpy(rtf + rtflen, after); rtflen += alen;

				tindex += multilen;
				uindex++;
		}

		rtf[rtflen++] = '}';	       /* Terminate RTF stream */
		rtf[rtflen++] = '\0';
		rtf[rtflen++] = '\0';

		clipdata3 = GlobalAlloc(GMEM_DDESHARE | GMEM_MOVEABLE, rtflen);
		if (clipdata3 && (lock3 = GlobalLock(clipdata3)) != NULL) {
			memcpy(lock3, rtf, rtflen);
			GlobalUnlock(clipdata3);
		}
		sfree(rtf);
	} else
		clipdata3 = NULL;

	GlobalUnlock(clipdata);
	GlobalUnlock(clipdata2);

	if (!must_deselect)
		SendMessage(hwnd, WM_IGNORE_CLIP, TRUE, 0);

	if (OpenClipboard(hwnd)) {
		EmptyClipboard();
		SetClipboardData(CF_UNICODETEXT, clipdata);
		SetClipboardData(CF_TEXT, clipdata2);
		if (clipdata3)
			SetClipboardData(RegisterClipboardFormat(CF_RTF), clipdata3);
		CloseClipboard();
	} else {
		GlobalFree(clipdata);
		GlobalFree(clipdata2);
	}

	if (!must_deselect)
		SendMessage(hwnd, WM_IGNORE_CLIP, FALSE, 0);
}

static DWORD WINAPI clipboard_read_threadfunc(void *param)
{
	HWND hwnd = (HWND)param;
	HGLOBAL clipdata;

	if (OpenClipboard(NULL)) {
		if ((clipdata = GetClipboardData(CF_UNICODETEXT))) {
			SendMessage(hwnd, WM_GOT_CLIPDATA, (WPARAM)1, (LPARAM)clipdata);
		} else if ((clipdata = GetClipboardData(CF_TEXT))) {
			SendMessage(hwnd, WM_GOT_CLIPDATA, (WPARAM)0, (LPARAM)clipdata);
		}
		CloseClipboard();
	}

	return 0;
}

static int process_clipdata(HGLOBAL clipdata, int unicode)
{
	sfree(clipboard_contents);
	clipboard_contents = NULL;
	clipboard_length = 0;

	if (unicode) {
		wchar_t *p = GlobalLock(clipdata);
		wchar_t *p2;

		if (p) {
			/* Unwilling to rely on Windows having wcslen() */
			for (p2 = p; *p2; p2++);
			clipboard_length = p2 - p;
			clipboard_contents = snewn(clipboard_length + 1, wchar_t);
			memcpy(clipboard_contents, p, clipboard_length * sizeof(wchar_t));
			clipboard_contents[clipboard_length] = L'\0';
			return TRUE;
		}
	} else {
		char *s = GlobalLock(clipdata);
		int i;

		if (s) {
			i = MultiByteToWideChar(CP_ACP, 0, s, strlen(s) + 1, 0, 0);
			clipboard_contents = snewn(i, wchar_t);
			MultiByteToWideChar(CP_ACP, 0, s, strlen(s) + 1,
				clipboard_contents, i);
			clipboard_length = i - 1;
			clipboard_contents[clipboard_length] = L'\0';
			return TRUE;
		}
	}

	return FALSE;
}

void request_paste(void *frontend)
{
	/*
	* I always thought pasting was synchronous in Windows; the
	* clipboard access functions certainly _look_ synchronous,
	* unlike the X ones. But in fact it seems that in some
	* situations the contents of the clipboard might not be
	* immediately available, and the clipboard-reading functions
	* may block. This leads to trouble if the application
	* delivering the clipboard data has to get hold of it by -
	* for example - talking over a network connection which is
	* forwarded through this very PuTTY.
	*
	* Hence, we spawn a subthread to read the clipboard, and do
	* our paste when it's finished. The thread will send a
	* message back to our main window when it terminates, and
	* that tells us it's OK to paste.
	*/
	DWORD in_threadid; /* required for Win9x */
	CreateThread(NULL, 0, clipboard_read_threadfunc,
		hwnd, 0, &in_threadid);
}

void get_clip(void *frontend, wchar_t **p, int *len)
{
	if (p) {
		*p = clipboard_contents;
		*len = clipboard_length;
	}
}

#if 0
/*
* Move `lines' lines from position `from' to position `to' in the
* window.
*/
void optimised_move(void *frontend, int to, int from, int lines)
{
	RECT r;
	int min, max;

	min = (to < from ? to : from);
	max = to + from - min;

	r.left = offset_width;
	r.right = offset_width + term->cols * font_width;
	r.top = offset_height + min * font_height;
	r.bottom = offset_height + (max + lines) * font_height;
	ScrollWindow(hwnd, 0, (to - from) * font_height, &r, &r);
}
#endif

/*
* Print a message box and perform a fatal exit.
*/
void fatalbox(const char *fmt, ...)
{
	va_list ap;
	char *stuff, morestuff[100];

	va_start(ap, fmt);
	stuff = dupvprintf(fmt, ap);
	va_end(ap);
	sprintf(morestuff, "%.70s Fatal Error", appname);
	MessageBox(hwnd, stuff, morestuff, MB_ICONERROR | MB_OK);
	sfree(stuff);
	cleanup_exit(1);
}

/*
* Print a modal (Really Bad) message box and perform a fatal exit.
*/
void modalfatalbox(const char *fmt, ...)
{
	va_list ap;
	char *stuff, morestuff[100];

	va_start(ap, fmt);
	stuff = dupvprintf(fmt, ap);
	va_end(ap);
	sprintf(morestuff, "%.70s Fatal Error", appname);
	MessageBox(hwnd, stuff, morestuff,
		MB_SYSTEMMODAL | MB_ICONERROR | MB_OK);
	sfree(stuff);
	cleanup_exit(1);
}

/*
* Print a message box and don't close the connection.
*/
void nonfatal(const char *fmt, ...)
{
	va_list ap;
	char *stuff, morestuff[100];

	va_start(ap, fmt);
	stuff = dupvprintf(fmt, ap);
	va_end(ap);
	sprintf(morestuff, "%.70s Error", appname);
	MessageBox(hwnd, stuff, morestuff, MB_ICONERROR | MB_OK);
	sfree(stuff);
}

static BOOL flash_window_ex(DWORD dwFlags, UINT uCount, DWORD dwTimeout)
{
	if (p_FlashWindowEx) {
		FLASHWINFO fi;
		fi.cbSize = sizeof(fi);
		fi.hwnd = hwnd;
		fi.dwFlags = dwFlags;
		fi.uCount = uCount;
		fi.dwTimeout = dwTimeout;
		return (*p_FlashWindowEx)(&fi);
	}
	else
		return FALSE; /* shrug */
}

static void flash_window(int mode);
static long next_flash;
static int flashing = 0;

/*
* Timer for platforms where we must maintain window flashing manually
* (e.g., Win95).
*/
static void flash_window_timer(void *ctx, unsigned long now)
{
	if (flashing && now == next_flash) {
		flash_window(1);
	}
}

/*
* Manage window caption / taskbar flashing, if enabled.
* 0 = stop, 1 = maintain, 2 = start
*/
static void flash_window(int mode)
{
	int beep_ind = conf_get_int(conf, CONF_beep_ind);
	if ((mode == 0) || (beep_ind == B_IND_DISABLED)) {
		/* stop */
		if (flashing) {
			flashing = 0;
			if (p_FlashWindowEx)
				flash_window_ex(FLASHW_STOP, 0, 0);
			else
				FlashWindow(hwnd, FALSE);
		}

	} else if (mode == 2) {
		/* start */
		if (!flashing) {
			flashing = 1;
			if (p_FlashWindowEx) {
				/* For so-called "steady" mode, we use uCount=2, which
				* seems to be the traditional number of flashes used
				* by user notifications (e.g., by Explorer).
				* uCount=0 appears to enable continuous flashing, per
				* "flashing" mode, although I haven't seen this
				* documented. */
				flash_window_ex(FLASHW_ALL | FLASHW_TIMER,
					(beep_ind == B_IND_FLASH ? 0 : 2),
					0 /* system cursor blink rate */);
				/* No need to schedule timer */
			} else {
				FlashWindow(hwnd, TRUE);
				next_flash = schedule_timer(450, flash_window_timer, hwnd);
			}
		}

	} else if ((mode == 1) && (beep_ind == B_IND_FLASH)) {
		/* maintain */
		if (flashing && !p_FlashWindowEx) {
			FlashWindow(hwnd, TRUE);	/* toggle */
			next_flash = schedule_timer(450, flash_window_timer, hwnd);
		}
	}
}

/*
* Beep.
*/
void do_beep(void *frontend, int mode)
{
	if (mode == BELL_DEFAULT) {
		/*
		* For MessageBeep style bells, we want to be careful of
		* timing, because they don't have the nice property of
		* PlaySound bells that each one cancels the previous
		* active one. So we limit the rate to one per 50ms or so.
		*/
		static long lastbeep = 0;
		long beepdiff;

		beepdiff = GetTickCount() - lastbeep;
		if (beepdiff >= 0 && beepdiff < 50)
			return;
		MessageBeep(MB_OK);
		/*
		* The above MessageBeep call takes time, so we record the
		* time _after_ it finishes rather than before it starts.
		*/
		lastbeep = GetTickCount();
	} else if (mode == BELL_WAVEFILE) {
		Filename *bell_wavefile = conf_get_filename(conf, CONF_bell_wavefile);
		if (!p_PlaySound || !p_PlaySound(bell_wavefile->path, NULL,
			SND_ASYNC | SND_FILENAME)) {
				char buf[sizeof(bell_wavefile->path) + 80];
				char otherbuf[100];
				sprintf(buf, "Unable to play sound file\n%s\n"
					"Using default sound instead", bell_wavefile->path);
				sprintf(otherbuf, "%.70s Sound Error", appname);
				MessageBox(hwnd, buf, otherbuf,
					MB_OK | MB_ICONEXCLAMATION);
				conf_set_int(conf, CONF_beep, BELL_DEFAULT);
		}
	} else if (mode == BELL_PCSPEAKER) {
		static long lastbeep = 0;
		long beepdiff;

		beepdiff = GetTickCount() - lastbeep;
		if (beepdiff >= 0 && beepdiff < 50)
			return;

		/*
		* We must beep in different ways depending on whether this
		* is a 95-series or NT-series OS.
		*/
		if(osVersion.dwPlatformId == VER_PLATFORM_WIN32_NT)
			Beep(800, 100);
		else
			MessageBeep(-1);
		lastbeep = GetTickCount();
	}
	/* Otherwise, either visual bell or disabled; do nothing here */
	if (!term->has_focus) {
		flash_window(2);	       /* start */
	}
}

/*
* Minimise or restore the window in response to a server-side
* request.
*/
void set_iconic(void *frontend, int iconic)
{
	if (IsIconic(hwnd)) {
		if (!iconic)
			ShowWindow(hwnd, SW_RESTORE);
	} else {
		if (iconic)
			ShowWindow(hwnd, SW_MINIMIZE);
	}
}

/*
* Move the window in response to a server-side request.
*/
void move_window(void *frontend, int x, int y)
{
	int resize_action = conf_get_int(conf, CONF_resize_action);
	if (resize_action == RESIZE_DISABLED || 
		resize_action == RESIZE_FONT ||
		IsZoomed(hwnd))
		return;

	SetWindowPos(hwnd, NULL, x, y, 0, 0, SWP_NOSIZE | SWP_NOZORDER);
}

/*
* Move the window to the top or bottom of the z-order in response
* to a server-side request.
*/
void set_zorder(void *frontend, int top)
{
	if (conf_get_int(conf, CONF_alwaysontop))
		return;			       /* ignore */
	SetWindowPos(hwnd, top ? HWND_TOP : HWND_BOTTOM, 0, 0, 0, 0,
		SWP_NOMOVE | SWP_NOSIZE);
}

/*
* Refresh the window in response to a server-side request.
*/
void refresh_window(void *frontend)
{
	InvalidateRect(hwnd, NULL, TRUE);
}

/*
* Maximise or restore the window in response to a server-side
* request.
*/
void set_zoomed(void *frontend, int zoomed)
{
	if (IsZoomed(hwnd)) {
		if (!zoomed)
			ShowWindow(hwnd, SW_RESTORE);
	} else {
		if (zoomed)
			ShowWindow(hwnd, SW_MAXIMIZE);
	}
}

/*
* Report whether the window is iconic, for terminal reports.
*/
int is_iconic(void *frontend)
{
	return IsIconic(hwnd);
}

/*
* Report the window's position, for terminal reports.
*/
void get_window_pos(void *frontend, int *x, int *y)
{
	RECT r;
	GetWindowRect(hwnd, &r);
	*x = r.left;
	*y = r.top;
}

/*
* Report the window's pixel size, for terminal reports.
*/
void get_window_pixels(void *frontend, int *x, int *y)
{
	RECT r;
	GetWindowRect(hwnd, &r);
	*x = r.right - r.left;
	*y = r.bottom - r.top;
}

/*
* Return the window or icon title.
*/
char *get_window_title(void *frontend, int icon)
{
	return icon ? icon_name : window_name;
}

/*
* See if we're in full-screen mode.
*/
static int is_full_screen()
{
	if (!IsZoomed(hwnd))
		return FALSE;
	if (GetWindowLongPtr(hwnd, GWL_STYLE) & WS_CAPTION)
		return FALSE;
	return TRUE;
}

/* Get the rect/size of a full screen window using the nearest available
* monitor in multimon systems; default to something sensible if only
* one monitor is present. */
static int get_fullscreen_rect(RECT * ss)
{
#if defined(MONITOR_DEFAULTTONEAREST) && !defined(NO_MULTIMON)
	HMONITOR mon;
	MONITORINFO mi;
	mon = MonitorFromWindow(hwnd, MONITOR_DEFAULTTONEAREST);
	mi.cbSize = sizeof(mi);
	GetMonitorInfo(mon, &mi);

	/* structure copy */
	*ss = mi.rcMonitor;
	return TRUE;
#else
	/* could also use code like this:
	ss->left = ss->top = 0;
	ss->right = GetSystemMetrics(SM_CXSCREEN);
	ss->bottom = GetSystemMetrics(SM_CYSCREEN);
	*/ 
	return GetClientRect(GetDesktopWindow(), ss);
#endif
}


/*
* Go full-screen. This should only be called when we are already
* maximised.
*/
static void make_full_screen()
{
	DWORD style;
	RECT ss;

	assert(IsZoomed(hwnd));

	if (is_full_screen())
		return;

	/* Remove the window furniture. */
	style = GetWindowLongPtr(hwnd, GWL_STYLE);
	style &= ~(WS_CAPTION | WS_BORDER | WS_THICKFRAME);
	if (conf_get_int(conf, CONF_scrollbar_in_fullscreen))
		style |= WS_VSCROLL;
	else
		style &= ~WS_VSCROLL;
	SetWindowLongPtr(hwnd, GWL_STYLE, style);

	/* Resize ourselves to exactly cover the nearest monitor. */
	get_fullscreen_rect(&ss);
	SetWindowPos(hwnd, HWND_TOP, ss.left, ss.top,
		ss.right - ss.left,
		ss.bottom - ss.top,
		SWP_FRAMECHANGED);

	/* We may have changed size as a result */

	reset_window(0);

	/* Tick the menu item in the System and context menus. */
	{
		int i;
		for (i = 0; i < lenof(popup_menus); i++)
			CheckMenuItem(popup_menus[i].menu, IDM_FULLSCREEN, MF_CHECKED);
	}
}

/*
* Clear the full-screen attributes.
*/
static void clear_full_screen()
{
	DWORD oldstyle, style;

	/* Reinstate the window furniture. */
	style = oldstyle = GetWindowLongPtr(hwnd, GWL_STYLE);
	style |= WS_CAPTION | WS_BORDER;
	if (conf_get_int(conf, CONF_resize_action) == RESIZE_DISABLED)
		style &= ~WS_THICKFRAME;
	else
		style |= WS_THICKFRAME;
	if (conf_get_int(conf, CONF_scrollbar))
		style |= WS_VSCROLL;
	else
		style &= ~WS_VSCROLL;
	if (style != oldstyle) {
		SetWindowLongPtr(hwnd, GWL_STYLE, style);
		SetWindowPos(hwnd, NULL, 0, 0, 0, 0,
			SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER |
			SWP_FRAMECHANGED);
	}

	/* Untick the menu item in the System and context menus. */
	{
		int i;
		for (i = 0; i < lenof(popup_menus); i++)
			CheckMenuItem(popup_menus[i].menu, IDM_FULLSCREEN, MF_UNCHECKED);
	}
}

/*
* Toggle full-screen mode.
*/
static void flip_full_screen()
{
	if (is_full_screen()) {
		ShowWindow(hwnd, SW_RESTORE);
	} else if (IsZoomed(hwnd)) {
		make_full_screen();
	} else {
		SendMessage(hwnd, WM_FULLSCR_ON_MAX, 0, 0);
		ShowWindow(hwnd, SW_MAXIMIZE);
	}
}

void frontend_keypress(void *handle)
{
	/*
	* Keypress termination in non-Close-On-Exit mode is not
	* currently supported in PuTTY proper, because the window
	* always has a perfectly good Close button anyway. So we do
	* nothing here.
	*/
	return;
}

int from_backend(void *frontend, int is_stderr, const char *data, int len)
{
	if (m_is_watch == 1)
	{
		char buffer[10240];
		int data_len = strlen(m_watch_data);

		if (len < 10240)
		{
			memcpy(buffer, data, len);
			buffer[len] = 0;
		}
		else
		{
			memcpy(buffer, data, 10239);
			buffer[10239] = 0;
		}

		if (data_len + len < 10240)
		{
			strcat(m_watch_data, buffer);
		}
		else
		{			
			if (data_len > 100)
			{
				char cpbuffer[10240];
				int place = data_len - 100;
				strcpy(cpbuffer, m_watch_data + place);
				strcpy(m_watch_data, cpbuffer);
			}
			else
			{
				m_watch_data[0] = 0;
			}
			
			data_len = strlen(m_watch_data);
			if (data_len + len < 10240)
			{
				strcat(m_watch_data, buffer);
			}
			else
			{
				strcpy(m_watch_data, buffer);
			}
		}
	}
	return term_data(term, is_stderr, data, len);
}

int from_backend_untrusted(void *frontend, const char *data, int len)
{
	return term_data_untrusted(term, data, len);
}

int from_backend_eof(void *frontend)
{
	return TRUE;   /* do respond to incoming EOF with outgoing */
}

int get_userpass_input(prompts_t *p, const unsigned char *in, int inlen)
{
	int ret;
	ret = cmdline_get_passwd_input(p, in, inlen);
	if (ret == -1)
		ret = term_get_userpass_input(term, p, in, inlen);
	return ret;
}

void agent_schedule_callback(void (*callback)(void *, void *, int),
	void *callback_ctx, void *data, int len)
{
	struct agent_callback *c = snew(struct agent_callback);
	c->callback = callback;
	c->callback_ctx = callback_ctx;
	c->data = data;
	c->len = len;
	PostMessage(hwnd, WM_AGENT_CALLBACK, 0, (LPARAM)c);
}
